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mobile - wireless communications
(58694 results)-
White Papers
Exploring Power line Networking for the Smart Building
Apr 2011
The SmartGrid is ushering in an era of new IP endpoints that already reside on the power grid today, but lack network connectivity. Many of these endpoints - refrigerators, air conditioners, and...
Provided by Association for Computing Machinery
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White Papers
Hijacking Power and Bandwidth From the Mobile Phone's Audio Interface
Dec 2010
The authors endow the mobile phone with a low-cost, open interface that can parasitically power external peripherals, and transfer data to and from them, using analog, digital, and serial...
Provided by Association for Computing Machinery
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White Papers
AutoWitness: Locating and Tracking Stolen Property While Tolerating GPS and Radio Outages
Nov 2010
The authors present AutoWitness, a system to deter, detect, and track personal property theft, improve historically dismal stolen property recovery rates, and disrupt stolen property distribution...
Provided by Association for Computing Machinery
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White Papers
Meter Any Wire, Anywhere by Virtualizing the Voltage Channel
Nov 2010
AC power meters require both voltage and current to be sampled concurrently to obtain real, reactive, and apparent power. Typically, the two measurements are taken in close physical proximity and...
Provided by Association for Computing Machinery
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White Papers
Putting the Software Radio on a Low-Calorie Diet
Oct 2010
Modern software-defined radios are large, expensive, and power-hungry devices and this, the authors argue, hampers their more widespread deployment and use, particularly in low-power,...
Provided by Association for Computing Machinery
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White Papers
Optimal Monitoring in Multi-Channel Multi-Radio Wireless Mesh Networks
May 2009
Wireless Mesh Networks (WMN) are finding increasing usage in city-wide deployments for providing network connectivity. Mesh routers in WMNs typically use multiple wireless channels to enhance the...
Provided by Association for Computing Machinery
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White Papers
Dynamic Spectrum Access: From Cognitive Radio to Network Radio
Feb 2012
Dynamic spectrum access is a new spectrum sharing paradigm that allows secondary users to access the abundant spectrum holes or white spaces in the licensed spectrum bands. DSA is a promising...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Routing in Pocket Switched Networks
Feb 2012
Pocket Switched Networks (PSNs) provide a new networking paradigm that takes advantage of human mobility to distribute data. Due to the frequent and long-duration disruptions of network links,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Link Quality Estimation for Future Cooperating Objects
Mar 2011
In order to cooperate, smart objects need to communicate using wireless communication. Wireless communication, however, is inherently unreliable. Towards this end, the sensor networking community...
Provided by Swedish Institute of Computer Science
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White Papers
JamLab: Augmenting Sensornet Testbeds With Realistic and Controlled Interference Generation
Apr 2011
Radio interference drastically affects the performance of sensornet communications, leading to packet loss and reduced energy-efficiency. As an increasing number of wireless devices operates on...
Provided by Association for Computing Machinery
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White Papers
Precise Packet Loss Pattern Generation by Intentional Interference
Nov 2011
Intermediate-quality links often cause vulnerable connectivity in wireless sensor networks, but packet losses caused by such volatile links are not easy to trace. In order to equip link layer...
Provided by Swedish Institute of Computer Science
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White Papers
On the Communication Complexity of 3D FFTs and Its Implications for Exascale
Apr 2012
This paper revisits the communication complexity of large-scale 3D Fast Fourier Transforms (FFTs) and asks what impact trends in current architectures will have on FFT performance at exascale. The...
Provided by Association for Computing Machinery
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White Papers
Power Adaptive Broadcasting With Local Information in Ad Hoc Networks
Jan 2012
Network wide broadcasting is an energy intensive function. In this paper, the authors propose a new method that performs transmission power adaptations based on information available locally, to...
Provided by University of California
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White Papers
Configuration Management at Massive Scale: System Design and Experience
Apr 2009
The development and maintenance of network device configurations is one of the central challenges faced by large network providers. Current network management systems fail to meet this challenge...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Enabling Contribution Awareness in an Overlay Broadcasting System
Dec 2007
The authors consider the design of bandwidth-demanding broadcasting applications using overlays in environments characterized by hosts with limited and asymmetric bandwidth, and significant...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Systematic Approach for Evolving VLAN Designs
Dec 2009
Enterprise networks are large and complex, and their designs must be frequently altered to adapt to changing organizational needs. The process of redesigning and reconfiguring enterprise networks...
Provided by Purdue University
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White Papers
Modeling and Understanding End-to-End Class of Service Policies in Operational Networks
Aug 2009
Business and economic considerations are driving the extensive use of service differentiation in Virtual Private Networks (VPNs) operated for business enterprises today. The resulting Class of...
Provided by Association for Computing Machinery
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White Papers
Extracting Network-Wide Correlated Changes From Longitudinal Configuration Data
Jan 2009
IP network operators face the challenge of making and managing router configuration changes to serve rapidly evolving user and organizational needs. Changes are expressed in low-level languages,...
Provided by Purdue University
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White Papers
A Toolkit for Automating and Visualizing VLAN Configuration
Dec 2009
Virtual Local Area Networks (VLANs) are extensively used in enterprise networks. However, their configuration remains an ad-hoc, complex and error-prone process today. The authors believe that to...
Provided by Association for Computing Machinery
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White Papers
Virtual MAN: A VLAN Management System for Enterprise Networks
Jun 2009
In this paper, the authors present Virtual MAN, a system which addresses plethora of unique challenges network operators face in managing Virtual Local Area Networks (VLANs) in enterprise...
Provided by Purdue University
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White Papers
The Future of Teaching Programming is on Mobile Devices
Mar 2012
From paper to computers, the way that the people have been writing down thoughts and performing symbolic computations has been constantly evolving. Teaching methods closely follow this trend,...
Provided by Association for Computing Machinery
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White Papers
A QoS-Aware Memory Controller for Dynamically Balancing GPU and CPU Bandwidth Use in an MPSoC
Apr 2012
Diverse IP cores are integrated on a modern system-on-chip and share resources. Off-chip memory bandwidth is often the scarcest resource and requires careful allocation. Two of the most important...
Provided by Association for Computing Machinery
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White Papers
Memory Mapped ECC: Low-Cost Error Protection for Last Level Caches
Jun 2009
This paper presents a novel technique, Memory Mapped ECC, which reduces the cost of providing error correction for SRAM caches. It is important to limit such overheads as processor resources...
Provided by Association for Computing Machinery
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White Papers
Adaptive Clustering in Wireless Sensor Network : Considering Nodes With Lowest Energy
Apr 2012
In recent years, Wireless Sensor Networks (WSNs) have gained increasing attention from researchers and scholars. One of the major issues in wireless sensor network is developing an...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Control Scheme of the Neighbour Information of Feedback Message Based on Neighbourhood Density in Insens
Apr 2012
An INSENS protocol is proposed to construct secure Wireless Sensor Networks (WSNs) that prevent attacks aimed at the network layer of WSNs. To achieve these objectives, all nodes which compose the...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Mobile Ad Hoc Network Routing Protocols: A Comparative Study
Apr 2012
An Ad hoc network is a collection of wireless mobile hosts forming a temporary network without the aid of any centralized administration or infrastructure. Such networks have no fixed topology due...
Provided by Academy & Industry Research Collaboration Center
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White Papers
A Novel Approach for Attacks Mitigation in Mobile Ad Hoc Networks Using Cellular Automatas
Apr 2012
Many security schemes for Mobile Ad-hoc NETwork(MANET) have been proposed so far but none of them has been successful in combating the different types of attacks that a mobile ad-hoc network often...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Performance Analysis on Mobile Agent Based Congestion Control Using AODV Routing Protocol Technique With Hop by Hop Algorithm for Mobile Ad-Hoc Network
Apr 2012
In Mobile Ad hoc NETworks (MANETs) congestion occurs due to the packet loss and it can be successfully reduced by involving congestion control scheme which includes routing algorithm and a flow...
Provided by Academy & Industry Research Collaboration Center
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White Papers
An Energy Efficient Distributed Protocol for Ensuring Coverage and Connectivity (E3C2) of Wireless Sensor Networks
Feb 2012
As Wireless Sensor Networks (WSNs) continue to attract more and more researchers attention, new ideas for applications are continually being developed, many of which involve consistent coverage...
Provided by Academy & Industry Research Collaboration Center
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White Papers
A Global Mobility Management Scheme for Reducing Overall Handover Latency in IP Based VANETs
Feb 2012
In VANETs, Mobility Management is a challenging task because of the fast mobility of the vehicles and small coverage range of 802.11 Access Points (APs). This results in frequent handoffs as...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Energy Efficient PKI Secure Key Management Technique in Wireless Sensor Network Using DHA & ECC
Feb 2012
Sensor Network are used for variety of application, such as emergency rescue, disaster relief but this is vulnerable to attacks. To make conversation confidential to the adversary so that not able...
Provided by Academy & Industry Research Collaboration Center
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White Papers
A New Fuzzy Algorithm for Improving Quality of Service in Real Time Wireless Sensor Networks
Apr 2012
A wireless sensor network comprise a large number of cheap sensors as nodes. These sensors used for data collection and transmition to a central node(sink), are distributed in packed formats in an...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Elitist Genetic Algorithm Based Energy Efficient Routing Scheme for Wireless Sensor Networks
Apr 2012
Wireless Sensor Networks have gained world-wide attention in recent years due to the advances made in wireless communication, information technologies and electronics field. They consists of...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Improved Fair-Zone Technique Using Mobility Prediction in WSN
Apr 2012
The self-organizational ability of ad-hoc Wireless Sensor Networks (WSNs) has led them to be the most popular choice in ubiquitous computing. Clustering sensor nodes organizing them hierarchically...
Provided by Academy & Industry Research Collaboration Center
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White Papers
A Beneficial Analysis of Node Deployment Schemes for Wireless Sensor Networks
Apr 2012
The Recent advances in electronics and wireless communication technologies have enabled the development of large-scale wireless sensor networks that consist of many low-powers, low-cost and...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Base Station and Zone Based Performance Evaluation of Optimal Clustering in Wireless Sensor Network
Apr 2012
The placement of base stations in wireless sensor networks affect the energy consumption for communication between sensor node and base station. In this paper, the authors analyzed the performance...
Provided by Academy & Industry Research Collaboration Center
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White Papers
An Energy Efficient Level Based Clustering Routing Protocol for Wireless Sensor Networks
Apr 2012
Nowadays, advanced technology of Wireless Sensor Networks used in many applications like health, environment, battle field etc. The sensor nodes equipped with limited power sources. Therefore,...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Performance Analysis of Chaotic DS-CDMA With CSK Modulation
Apr 2012
Direct Sequence-Code Division Multiple Access (DS-CDMA) technique is used in cellular systems where users in the cell are separated from each other with their unique spreading codes. In recent...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Performance Measures of Wireless Protocols for ATM Networks
Apr 2012
The concept of wireless ATM is now being actively considered as a potential framework for next generation wireless communication networks capable of supporting integrated multimedia services with...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Fractional Bit Encoding and Data Dependency Check Based Low Power MIMO Spatial Modulator
Feb 2012
This paper present a Xilinx Virtex-5 FPGA implementation of a low power Spatial Modulation (SM) based transmitter for the Multiple-Input Multiple Output (MIMO) systems. The low power consumption...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Trellis-Based Receivers for SC-FDMA Transmission Over MIMO ISI Channels
May 2008
For the uplink of the E - UTRA Long Term Evolution (LTE) system, Single - Carrier Frequency - Division Multiple Access (SC - FDMA) transmission has been selected. Frequency - domain linear and...
Provided by University of Erlangen-Nuremberg
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White Papers
User Pairing for Multiuser SC-FDMA Transmission Over Virtual MIMO ISI Channels
Jul 2009
This paper proposes different criteria for user pairing for a Virtual Multiple-Input Multiple-Output (V-MIMO) Single-Carrier Frequency-Division Multiple Access (SC-FDMA) transmission over...
Provided by University of Erlangen-Nuremberg
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White Papers
Turbo Equalization for Single Antenna Cochannel Interference Cancellation in Single Carrier Transmission Systems
Jul 2007
In recent years, Single Antenna Interference Cancellation (SAIC) has evolved as an attractive method to increase the capacity of single carrier mobile radio networks like GSM/EDGE (Enhanced Data...
Provided by University of Erlangen-Nuremberg
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White Papers
Efficient Distribution of Large Files in UMTS Supported by Network Coded M2M Data Transfer With Multiple Generations
Jun 2009
This paper is a sequel of previous work, in which the authors have studied the traffic management problem in UMTS. The main objective was to improve the spectral efficiency of cellular networks by...
Provided by University of Erlangen-Nuremberg
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White Papers
OFDM Transmission With Single Antenna Interference Cancellation
Jan 2008
Future mobile communications radio networks, e.g. 3GPP Long Term Evolution (LTE), will typically use an Orthogonal Frequency Division Multiplexing (OFDM) based air interface in the downlink....
Provided by University of Erlangen-Nuremberg
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White Papers
Comparison of One-Dimensional Adaptive Channel Estimation Techniques for OFDM Systems
Sep 2008
In this paper, adaptive pilot-aided channel estimation for Orthogonal Frequency-Division Multiplexing (OFDM) transmission is addressed. For this purpose, instead of a theoretically optimum...
Provided by University of Erlangen-Nuremberg
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White Papers
Channel Capacity Evaluation of Single Antenna Interference Cancellation for Single Carrier Transmission Systems
May 2008
Network capacity of cellular mobile radio systems is often limited by interference from co- and adjacent channel interferers due to dense frequency planning (reuse) in practical scenarios. For...
Provided by University of Erlangen-Nuremberg
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White Papers
Geographic Gossip: Efficient Averaging for Sensor Networks
Mar 2008
Gossip algorithms for distributed computation are attractive due to their simplicity, distributed nature, and robustness in noisy and uncertain environments. However, using standard gossip...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Frame and Frequency Acquisition for OFDM
Feb 2009
Frame timing and carrier frequency offsets in Orthogonal Frequency Division Multiplexing (OFDM) may drastically degrade performance if not accurately compensated. In practice, these offsets are...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Spatial Multiplexing in the Multi-User MIMO Downlink Based on Signal-to-Leakage Ratios
Oct 2007
Spatial multiplexing in the Multi-User MIMO (MUMIMO) downlink allows each user in the system to receive multiple data subchannels simultaneously using the same time and spectral resources. In this...
Provided by University of Leeds
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White Papers
Training Design for CFO Estimation in OFDM Over Correlated Multipath Fading Channels
Aug 2007
Carrier Frequency Offset (CFO) estimation is a key challenge in multicarrier systems such as OFDM. Often, this task is carried out using a preamble made of a number, say J, of Repetitive-Slots...
Provided by University of Leeds
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White Papers
Outage Probability Analysis of Cognitive Radio Networks Under Self-Coexistence Constraint
Feb 2010
Cognitive Radio Networks (CRNs) are envisioned to eradicate the artificial scarcity caused by today's stringent spectrum allocation policy. In this paper, the authors develop a statistical...
Provided by University of Leeds
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White Papers
A Generalized Geometry-Inclusive Fading Model for Adhoc Wireless Networks
Apr 2009
A new generic statistical fading model for wireless adhoc networks is proposed. Besides small scale fading, the authors' proposed model incorporates the variations due to geometry, i.e....
Provided by University of Leeds
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White Papers
Extension of GPS Broadcast Ephemeris to Determine Satellite Velocity and Acceleration
Apr 2009
This paper presents an expansion of the algorithm provided in the GPS ICD to include the precise real-time computation in ECEF coordinate of the velocity and acceleration components of the...
Provided by University of Leeds
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White Papers
Semi-Blind Locally Optimum Detection for Spectrum Sensing in Cognitive Radio
Sep 2009
Spectrum sensing in cognitive radio becomes a challenging task when the signals received at the secondary users' transmitters exhibit low power. Locally Optimum Detectors (LOD) are therefore...
Provided by University of Leeds
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White Papers
Wireless Networks With Retransmission Diversity and Carrier-Sense Multiple Access
Jun 2009
Network Diversity Multiple Access protocols (NDMA) have been shown to considerably outperform previously proposed algorithms. However, several issues in their analysis remain unsolved,...
Provided by University of Leeds
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White Papers
Locally Optimum Detection for Spectrum Sensing in Cognitive Radio
May 2009
Spectrum sensing is a key feature in cognitive radio networks. The authors propose a Locally Optimum (LO) detector, which is known to be optimum at low SNR. This is desirable in cognitive radio...
Provided by University of Leeds
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White Papers
Data Detection in Cooperative STBC-OFDM Systems With Multiple Frequency Offsets
Feb 2009
This paper addresses the problem of data detection in cooperative Space-Time Block Coded (STBC) Orthogonal Frequency Division Multiplexing (OFDM) systems in the presence of multiple Carrier...
Provided by University of Leeds
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White Papers
Transmit Beamforming for MISO Frequency-Selective Channels With Total and Per-Antenna Power Constraints
Dec 2009
The authors consider the problem of transmit BeamForming (BF) design for Cyclic Prefixed (CP) transmissions over MISO frequency selective channels. Both CP single carriers (SC) and Orthogonal...
Provided by University of Leeds
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White Papers
Timing and Frequency Synchronization for OFDM Based Cooperative Systems
Dec 2008
In this paper, the authors investigate the timing and Carrier Frequency Offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels....
Provided by University of Leeds
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White Papers
Pilot Design for MIMO OFDM Systems With Virtual Carriers
Jan 2009
The authors consider the problem of pilot design for channel estimation in Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems in the presence of...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Low Complexity Data Detection Algorithm in Cooperative SFBC-OFDM Systems With Multiple Frequency Offsets
Sep 2010
This paper addresses the problem of data detection in cooperative Space-Frequency Block-Coding (SFBC) Orthogonal Frequency Division Multiplexing (OFDM) systems in the presence of multiple Carrier...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Practical Timing and Frequency Synchronization for OFDM Based Cooperative Systems
Mar 2010
In this paper, the authors investigate the timing and Carrier Frequency Offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Full-Rank and Rank-Deficient Precoding Schemes for Single-Carrier Block Transmissions
Apr 2009
In block-mode transmission, inserting a Cyclic Prefix (CP) between two consecutive blocks provides an efficient way of removing inter-block interference and simplifies equalization of...
Provided by University of Leeds
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White Papers
Multipath Diversity and Coding Gains of Cyclic-Prefixed Single Carrier Systems
Jan 2009
The multipath diversity and coding gain metrics for Cyclic-Prefixed Single-Carrier (SC-CP) systems, which characterize the Bit Error Rate (BER) at high SNR, have not been carefully studied in the...
Provided by University of Leeds
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White Papers
Training Design for Repetitive-Slot-Based CFO Estimation in OFDM
May 2009
Carrier Frequency Offset (CFO) estimation is a key challenge in wireless systems employing OFDM modulation. Often, CFO estimation is carried out using a preamble made of a number, say J, of...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Block Coded Modulation and Non-Coherent Detection For Impulse Radio UWB
Sep 2007
Noncoherent receivers are favored for UWB-IR systems because of their low implementation complexity compared with coherent correlation receivers. However, existing noncoherent schemes, such as...
Provided by University of Leeds
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White Papers
Perfect Space-Time Codes for Any Number of Antennas
Aug 2007
In a recent paper, perfect (n x n) space-time codes were introduced as the class of linear dispersion space-time codes having full rate, non-vanishing determinant, a signal constellation...
Provided by University of Southern California
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White Papers
Turbo Equalization Receivers for Evolved GSM/EDGE Radio Access Network Using QAM Modulation
Mar 2008
For evolution of the GSM/EDGE Radio Access Network (RAN), the use of higher order modulation like 16 - and 32 - ary Quadrature Amplitude Modulation (QAM) is considered in standardization for...
Provided by University of Erlangen-Nuremberg
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White Papers
Cooperative Mobile-to-Mobile File Dissemination in Cellular Networks Within a Unified Radio Interface
Jan 2008
In this paper, a data dissemination technique is introduced for cellular networks by embedding peer-to-peer data transfer into the hierarchical architecture of UMTS (Universal Mobile...
Provided by Reed Elsevier
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White Papers
Network Coding Assisted Mobile-To-Mobile File Transfer
Jul 2008
This paper is a sequel of previous work, in which the authors have studied the problem of congestions on the typically overloaded downlink channels in UMTS (Universal Mobile Telecommunication...
Provided by University of Erlangen-Nuremberg
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White Papers
Robust MBSFN Transmission Using the Golden Code
Aug 2009
Multimedia Broadcast over a Single Frequency Network (MBSFN) has attracted a lot of interest recently. This paper is on Golden coded spatial multiplexing MBSFN transmission using a Soft-Output...
Provided by University of Erlangen-Nuremberg
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White Papers
Block Processing for One-Dimensional Adaptive Channel Estimation Algorithms for OFDM Systems
Feb 2009
Adaptive pilot-aided channel estimation in frequency domain for Orthogonal Frequency-Division Multiplexing (OFDM) transmission is considered in this paper. More specifically, adaptive block and...
Provided by University of Erlangen-Nuremberg
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White Papers
Synchronization in Wireless Communications Heidi
Mar 2009
The last decade has witnessed an immense increase of wireless communications services in order to keep pace with the ever increasing demand for higher data rates combined with higher mobility. To...
Provided by Ghent University
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White Papers
Performance Analysis of a Cooperative System With Rateless Codes and Buffered Relays
Apr 2011
In a cooperative relay-assisted communication system that uses rateless codes, packets get transmitted from a source to a destination at a rate that depends on instantaneous channel states of the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
PowerPedia - Changing Energy Usage With the Help of a Smartphone Application
Apr 2011
When it comes to conserving electricity, it is crucial for users to know how much energy is consumed by individual appliances. However, the technical feedback provided by existing energy...
Provided by ETH Zurich
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White Papers
Multiple-Antenna Techniques for Wireless Communications - A Comprehensive Literature Survey
Jul 2009
The use of multiple antennas for wireless communication systems has gained overwhelming interest during the last decade - both in academia and industry. Multiple antennas can be utilized in order...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Device Placement for Heterogeneous Wireless Sensor Networks: Minimum Cost With Lifetime Constraints
Jul 2007
Device placement is a fundamental factor in determining the coverage, connectivity, cost and lifetime of a Wireless Sensor Network (WSN). In this paper, the authors explore the problem of relay...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Supporting a Mobile Lost and Found Community
Sep 2008
In the era of ubiquitous devices and mobility, the authors increasingly carry objects of great value (in terms of data, money or emotions). Because of the authors increased mobility, they are also...
Provided by Association for Computing Machinery
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White Papers
A Routing Protocol Based on Clusters for Large-Scale Wireless Sensor Networks
Oct 2009
Aiming at the insufficiency of Low Energy Adaptive Clustering Hierarchy (LEACH) routing protocol that cluster-head nodes distribution is uneven in the space and cluster-head nodes consume...
Provided by Academy Publisher
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White Papers
Design and Analysis of Downlink Spectrum Sharing in Two-Tier Cognitive Femto Networks
Feb 2012
In two-tier networks consisting of a macrocell overlaid with femtocells in co-channel deployment and closed-access policy, spatial reuse is achieved at the price of severe intra-tier and...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cooperative Access Class Barring for Machine-to-Machine Communications
Jan 2012
Supporting trillions of devices is the critical challenge in Machine-To-Machine (M2M) communications, which results in severe congestions in random access channels of cellular systems that have...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Asynchronous Dynamic Spectrum Access
Jan 2012
Synchronization among Primary Users (PUs) and Secondary Users (SUs) is either explicitly or implicitly assumed in the literature to allow reliable Dynamic Spectrum Access (DSA) and Cognitive Radio...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Green Resource Allocation to Minimize Receiving Energy in OFDMA Cellular Systems
Mar 2012
Advanced cellular systems supporting ultra high traffic (e.g., 1 Gbps) utilize aggressive communication technologies to User Equipment (UE) and thus induce high-energy consumption. To reduce UE...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Rate-Delay Enhanced Multipath Transmission Scheme Via Network Coding in Multihop Networks
Mar 2012
Distinct from the existing rate-reliability results, a novel multipath transmission scheme is proposed to enhance the rate-delay performance in multihop networks by employing network coding at the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Connectivity of Multiple Cooperative Cognitive Radio Ad Hoc Networks
Feb 2012
In cognitive radio networks, the signal reception quality of a secondary user degrades due to the interference from multiple heterogeneous primary networks, and also the transmission activity of a...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
IEEE 1900.6: Spectrum Sensing Interfaces and Data Structures for Dynamic Spectrum Access and Other Advanced Radio Communication Systems Standard: Technical Aspects and Future Outlook
Dec 2011
Currently, the IEEE Standards Association is very active in the framework of cognitive radio with an aim to provide a bridge between research results, implementation, and widespread deployment of...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Impact of Antenna Pattern and Link Model on Directional Neighbor Discovery in 60 GHz Networks
Feb 2011
60GHz radio is a very attractive technology for short-range wireless communication due to its capability to provide Gbps data rate. To address the Neighbor Discovery (ND) problem in 60GHz...
Provided by Delft University of Technology
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White Papers
A Survey on Handoffs - Lessons for 60 GHz Based Wireless Systems
Oct 2011
Wireless communication is playing an important role in the people daily life since it offers flexibility and mobility. New multimedia services demand data-rates of up to hundreds of Mbps and thus...
Provided by Delft University of Technology
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White Papers
An Analytical Energy Consumption Model for Packet Transfer Over Wireless Links
Nov 2011
The authors provide a detailed analytical model for estimating the total energy consumed to exchange a packet over a wireless link. Their model improves many of the current models by considering...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Performance Analysis of Synchronization Frame Based Interference Mitigation in 60 GHz WPANs
May 2010
Sixty GHz radio is a promising technology due to its potential to provide multi-Gbps based data rate. It is capable to support emerging wireless multimedia applications like uncompressed high...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
In House High Definition Multimedia: An Overview on Quality-of-Service Requirements
Apr 2010
The increasing demand for high definition multimedia applications in indoor environment requires a novel network design, which should be devised on a clear understanding of Quality-of-Service...
Provided by Delft University of Technology
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White Papers
Mobility Modeling for Personal Networks
Dec 2009
A Personal Network (PN) is a user-centric design interconnecting numerous devices belonging to a user in different geographic locations, such as home, office, car, etc., to form a single global...
Provided by Springer Science+Business Media
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White Papers
Analyzing 60 GHz Radio Links for Indoor Communications
Jul 2010
With the increase in the capacity of mobile communication devices, it is but natural to expect that these devices would work ubiquitously anywhere anytime to offer high data rate support. Recently...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Performance Analysis of Multichannel Medium Access Control Algorithms for Opportunistic Spectrum Access
Jul 2009
Static spectrum assignment, which has been applied to radio frequencies for almost a century, has led to a quasi-scarcity of the spectrum. Therefore, finding a new unassigned frequency slot has...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Quality of Service Assessment of Opportunistic Spectrum Access: A Medium Access Control Approach
Jan 2009
Opportunistic Spectrum Access (OSA) is a promising new spectrum management approach that will allow coexistence of both licensed and opportunistic users in each spectrum band, potentially...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Address Autoconfiguration in Wireless Ad Hoc Networks: Protocols and Techniques
Feb 2008
With the advent of smaller devices having higher computational capacity and wireless communication capabilities, the world is becoming completely networked. Although, the mobile nature of these...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cognitive Functionality in Next Generation Wireless Networks: Standardization Efforts
Jun 2007
The idea of Cognitive Radio (CR) as an alternative wireless communication paradigm, capable of managing and executing itself in real-time without human intervention, was first proposed by Joseph...
Provided by Delft University of Technology
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White Papers
Radio-Over-Fiber Based Architecture for Seamless Wireless Indoor Communication in the 60 GHz Band
Sep 2007
In order to satisfy the increasing demand of wireless broadband multimedia services, much attention has been paid to the 60 GHz band where as much as 5 GHz of spectrum has been reserved. However,...
Provided by Reed Elsevier
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White Papers
FIST: A Framework for Flexible and Low-Cost Wireless Testbed for Sensor Networks
Nov 2009
Setting up a wireless sensor network for an experiment is both time and effort intensive. Sometimes, the time required to set up the experimental framework is even more than that of the experiment...
Provided by Springer Science+Business Media
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White Papers
A Cognitive Framework for Realizing and Exploiting the Internet of Things Concept
Oct 2011
This paper proposes a cognitive management framework for realizing and exploiting the Internet of Things concept in the Future Internet (FI) era. Cognitive systems offer self-x and learning. A...
Provided by Delft University of Technology
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White Papers
Approximate Service Provisioning in an Invisible Network of the Future
Oct 2011
Communication and specifically networking has brought a huge change in the people lifestyles. Coupled with the increased use of mobile services, more and more population is increasingly being...
Provided by Delft University of Technology
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White Papers
COGMAN: A Cognitive Management Framework to Support Exploitation of the Future Internet
Oct 2011
In this paper, a cognitive management framework is proposed for ensuring exploitation of the Future Internet (FI). Cognitive systems offer self-x and learning. A cognitive system has the ability...
Provided by Delft University of Technology
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White Papers
Neighbor Discovery in 60 GHz Wireless Personal Area Networks
Jul 2010
60GHz radio is a promising technology which can handle the data rate of the order of gigabits-per-second. Hence, it is an attractive candidate for Wireless Personal Area Networks (WPANs). Due to...
Provided by Delft University of Technology
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White Papers
FEW-PNets - A Framework for Emulation of Wireless Personal Networks
Aug 2008
With the advent of miniaturization and higher computing capabilities of wireless devices, there is an exponential rise in the number of devices such as personal digital assistants, etc....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Performance Measures of Dynamic Spectrum Access Networks
Oct 2011
In this paper, the authors give insight into the performance of Dynamic Spectrum Access Networks (DSAN), analyzing Quality of Detection of Primary User (PU) and DSAN blocking probability, when the...
Provided by Delft University of Technology
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White Papers
Order Statistics for Voice Activity Detection in VoIP
Jun 2010
Real-time voice communication over the Internet has rapidly gained popularity. It is indeed essential to reduce the total bandwidth consumption to efficiently use the available bandwidth for the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
An Active Access-Point Selection Approach for Dependable Wireless Mesh Networks
Sep 2011
As an inexpensive, flexible, and scalable Internet-access wireless network, the authors have studied the architecture, protocols, and design optimizations of the Wireless Internet-access Mesh...
Provided by World Scientific Publishing
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White Papers
Jump-Stay Rendezvous Algorithm for Cognitive Radio Networks
Jan 2012
Cognitive Radio Networks (CRNs) have emerged as advanced and promising paradigm to exploit the existing wireless spectrum opportunistically. It is crucial for users in CRNs to search for neighbors...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cyclic Feature Detection With Sub-Nyquist Sampling for Wideband Spectrum Sensing
Feb 2012
For cognitive radio networks, efficient and robust spectrum sensing is a crucial enabling step for dynamic spectrum access. Cognitive radios need to not only rapidly identify spectrum...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Weighted Energy Detection for Non-coherent Ultra-Wideband Receiver Design
Feb 2011
For Ultra-WideBand (UWB) impulse radios, non-coherent energy detectors are motivated for their simple circuitry and effective capture of multipath energy. A major performance-degrading factor in...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Decentralized Sparse Signal Recovery for Compressive Sleeping Wireless Sensor Networks
Jul 2010
This paper develops an optimal decentralized algorithm for sparse signal recovery and demonstrates its application in monitoring localized phenomena using energy-constrained large-scale wireless...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Optimal Power Control for Cognitive Radio Networks Under Coupled Interference Constraints: A Cooperative Game-Theoretic Perspective
May 2010
Distributed power control is investigated for Cognitive Radio Networks (CRNs) based on a cooperative game-theoretic framework. Taking into consideration both network efficiency and user fairness,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Localized Structural Health Monitoring Using Energy-Efficient Wireless Sensor Networks
Jun 2010
This paper presents a localized information processing approach for long-term, online Structural Health Monitoring (SHM) using Wireless Sensor Networks (WSNs). Based on the embedded AR-ARX method,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cramer - Rao Bounds for Hybrid TOA/DOA-Based Location Estimation in Sensor Networks
Aug 2009
This paper derives the Cramer - Rao Bound (CRB) for source location estimation using joint Time-/Direction-Of-Arrival (TOA/DOA) measurements collected in a wireless sensor network setup. Each...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Maximum Likelihood Multiple Access Timing Synchronization for UWB Communications
Nov 2008
Rapid and reliable timing synchronization is a demanding task in the receiver design for Ultra-WideBand (UWB) communication systems, especially when concurrent multiple access is called for. This...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Wideband Receiver Design in the Presence of Strong Narrowband Interference
Jul 2008
In the presence of Narrow-Band Interference (NBI), detection of weak wideband signals faces foremost challenges in Analog-to-Digital Conversion (ADC), due to the dynamic range problem encountered...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Multiple Symbol Differential Detection for UWB Communications
Jun 2010
Multiple Symbol Differential Detection (MSDD) offers high-performance symbol recovery and bypasses training or channel estimation, which are highly desired features in low-power Ultra-WideBand...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Joint Multi-Source Localization and Environment Perception in Wireless Sensor Networks
Jul 2010
This paper addresses the problem of joint multi-source localization and environment perception in Wireless Sensor Networks (WSNs) based on Received Signal Strength (RSS). Contrary to the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Energy-Efficient Decentralized Event Detection in Large-Scale Wireless Sensor Networks
Sep 2009
This paper addresses the problem of decentralized event detection in large-scale Wireless Sensor Networks (WSNs). Comparing with centralized or hierarchical solutions, decentralized algorithms are...
Provided by University of Science and Technology of China
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