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Institute of Electrical and Electronics Engineers
(11881 results)-
White Papers
Aggregation With Fragment Retransmission for Very High-Speed WLANs
April 1, 2009, 12:00am PDT
In upcoming very high-speed Wireless LANs (WLANs), the physical (PHY) layer rate may reach 600 Mbps. To achieve high efficiency at the medium access control (MAC) layer, it identified fundamental...
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White Papers
Performance Analysis of IEEE 802.11n Under Different STBC Rates Using 64-QAM
August 27, 2009, 12:00am PDT
The main focus of current research and development for the next-generation Wireless Local Area Network (WLAN) communication systems is to enhance the link throughput and channel capacity. In this...
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White Papers
Scheduling in IEEE 802.16e Mobile WiMAX Networks: Key Issues and a Survey
February 1, 2009, 12:00am PST
Interest in Broadband Wireless Access (BWA) has been growing due to increased user mobility and the need for data access at all times. IEEE 802.16e based WiMAX networks promise the best available...
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White Papers
The Use of Digital Manipulatives in K-12: Robotics, GPS/GIS and Programming
October 21, 2009, 12:00am PDT
Faculty from 4-H Youth Development, Biosystems Engineering, and Education have collaborated to develop and implement an innovative robotics and geospatial technologies program, delivered in an...
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White Papers
Handover Strategy for Mobile Wireless LAN
October 5, 2009, 12:00am PDT
Wireless Local Area Network (WLAN) is becoming a new era of wireless networking technology to adapt the user with strong desire for new technology. The main issue is to integrate WLAN with WAN,...
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White Papers
Signal Processing Challenges for Future Wireless Communications
March 19, 2009, 12:00am PDT
The mobile internet has finally arrived with the sky-rocketing usage increase of HSPA. LTE, WiMAX and evolved WiFi are the upcoming wireless standards which are based on OFDM and MIMO. The...
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White Papers
BlueBridge: A Wireless Interworking Architecture for the Ubiquitous Home
November 25, 2008, 12:00am PST
The plethora of networked multimedia services and ubiquitous devices has ultimately changed the objective of networking to one that strives in enabling the provision and interaction of networked...
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White Papers
A Cognitive Radio System Using Discrete Wavelet Multitone Modulation
February 27, 2009, 12:00am PST
A Cognitive Radio (CR) system is proposed to operate in the GSM band and the discrete wavelet multitone is adopted as the modulation scheme. This modulation has stronger side-lobe attenuation than...
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White Papers
Wireless Handhelds to Support Clinical Nursing Practicum
April 2, 2009, 12:00am PDT
This paper reports implementation and evaluation of a wireless handheld learning environment used to support a clinical nursing practicum course. The learning environment was designed so that...
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White Papers
An Authentication Scheme for QoS-Aware Multi-Operator Maintained Wireless Mesh Networks
June 15, 2009, 12:00am PDT
This paper considers QoS aware mesh networks that are maintained by multiple operators and they cooperate in the provision of networking services to the mesh clients. In order to support mobile...
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White Papers
A Study of the Percolation Threshold for k-Collaborative Wireless Networks
July 21, 2009, 12:00am PDT
How to efficiently use the air interface is a crucial issue in wireless networks. In order to improve the performance, mechanisms have been proposed to improve the reach and the connectivity of...
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White Papers
Performance Evaluation of a Hybrid Testbed for Wireless Mesh Networks
January 7, 2008, 12:00am PST
Wireless Mesh Networks (WMN) are supposed to provide flexible and high-performance wireless network access for large indoor and outdoor areas, e.g., community networking and metropolitan area...
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White Papers
Providing Group Tour Guide by RFIDs and Wireless Sensor Networks
March 18, 2009, 12:00am PDT
This paper proposes a new application framework for group tour guiding services based on RFIDs and wireless sensor networks. The paper considers a sensing field mixed with multiple independent...
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White Papers
Experimental Comparison of Bandwidth Estimation Tools for Wireless Mesh Networks
March 28, 2009, 12:00am PDT
Measurement of available bandwidth in a network has always been a topic of great interest. This knowledge can be applied to a wide variety of applications and can be instrumental in providing...
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White Papers
Optimizing Lifetime for Continuous Data Aggregation With Precision Guarantees in Wireless Sensor Networks
August 1, 2008, 12:00am PDT
This paper exploits the tradeoff between data quality and energy consumption to extend the lifetime of wireless sensor networks. To obtain an aggregate form of sensor data with precision...
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White Papers
Structure and Evolution of a Large-Scale Wireless Community Network
April 16, 2009, 12:00am PDT
In recent years, the author has witnessed a trend towards open wireless access, mainly driven by the low cost of IEEE 802.11-capable equipment and its operation in unlicensed spectrum. This trend...
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White Papers
MESHCHORD: A Location-Aware, Cross-Layer Specialization of Chord for Wireless Mesh Networks
March 9, 2009, 12:00am PDT
Wireless mesh networks are a promising area for the deployment of new wireless communication and networking technologies. This paper addresses the problem of enabling effective peer-to-peer...
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White Papers
A Novel Channel Assignment Algorithm for Multicast in Multi-Radio Wireless Mesh Networks
November 5, 2007, 12:00am PST
With the development of Internet, many new applications with obvious multicast character come forth and become popular, which increase the importance of multicast in Internet especially in...
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White Papers
Wireless Video Multicast in Tactical Environments
October 7, 2009, 12:00am PDT
There has been a tremendous increase in demand for real-time video applications over military networks. Multicast provides an efficient solution for simultaneous content delivery to a group of...
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White Papers
A Case Study for Evaluating IEEE 802.15.4 Wireless Sensor Network Formation With Mobile Sinks
April 24, 2009, 12:00am PDT
Wireless Sensor Networks are traditionally composed of a multiplicity of sensor nodes that sense given phenomena and deliver the sensed data to specific sink nodes. In the most of the application...
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White Papers
Design and Performance Study for a Mobility Management Mechanism (WMM) Using Location Cache for Wireless Mesh Networks
March 18, 2009, 12:00am PDT
Wireless Mesh Networks (WMNs) have emerged as one of the major technologies for 4G high-speed mobile networks. In a WMN, a mesh backhaul connects the WMN with the Internet, and Mesh Access Points...
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White Papers
Time Synchronization Based on Spanning Tree for Wireless Sensor Networks
January 20, 2009, 12:00am PST
Off late, wireless sensor networks have been an interesting and important research area. The time synchronization is an important problem for wireless sensor networks. In this paper, a novel time...
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White Papers
Capacity Analysis of Wireless Mesh Networks With Omni or Directional Antennas
March 28, 2009, 12:00am PDT
Wireless mesh networks receive much research interest in recent years. A wireless mesh network is a wireless network consists of a set of nodes, some of them connected to the Internet directly by...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Integrating Perceptual, Device and Location Characteristics for Wireless Multimedia Transmission
June 21, 2009, 12:00am PDT
This paper describes an investigation exploring user experiences of accessing streamed multimedia content, when that content is tailored according to perceptual, device and location...
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White Papers
DMRC: Distortion-Minimizing Rate Control for Wireless Multimedia Sensor Networks
September 11, 2009, 12:00am PDT
The availability of inexpensive CMOS cameras and microphones that can ubiquitously capture multimedia content from the environment is fostering the development of Wireless Multimedia Sensor...
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White Papers
A Novel Approach for Flexible Wireless Automation in Real-Time Environments
August 28, 2008, 12:00am PDT
To widen the control over a factory from purely wire based to the wireless domain, both secure and reliable communication infrastructure with real-time capabilities is needed. Based on wireless...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Repeatable and Realistic Experimentation in Mobile Wireless Networks
May 3, 2009, 12:00am PDT
Experimenting with mobile and wireless networks is challenging because testbeds lack repeatability and existing simulation models are unrealistic for real-world settings. The paper presents...
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White Papers
An Educational Mobile Blogging System for Supporting Collaborative Learning
April 2, 2009, 12:00am PDT
With the gradual adoption of "Web 2.0" technologies, one of key Web 2.0 technologies, blog, has become a popular and wide-accepted Web application. Although mobile device users can access the Web...
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White Papers
Fidelity at High Speed: Wireless Insite Real Time Module
October 7, 2008, 12:00am PDT
For predictions of vehicle to vehicle communications, convoy communications, and Improvised Electronic Device (IED) detection/defense operations, Remcom's Wireless InSite Real Time (RT) module...
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White Papers
Mobility Metric Based LEACH-Mobile Protocol
February 7, 2009, 12:00am PST
Cluster based protocols like LEACH were found best suited for routing in wireless sensor networks. In mobility centric environments some improvements were suggested in the basic scheme....
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White Papers
Efficient Resource Allocation for Wireless Multicast
April 1, 2008, 12:00am PDT
This paper proposes a bandwidth-efficient multicast mechanism for heterogeneous wireless networks. The paper reduces the bandwidth cost of an Internet Protocol (IP) multicast tree by adaptively...
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White Papers
A Service-Oriented Framework for Quantitative Security Analysis of Software Architectures
June 3, 2009, 12:00am PDT
Software systems today often run in malicious environments in which attacks or intrusions are quite common. This situation has brought security concerns into the development of software systems....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Performance Analysis of Flooding Attack Prevention Algorithm in MANETs
September 16, 2009, 12:00am PDT
The lack of any centralized infrastructure in Mobile Ad hoc NETworks (MANET) is one of the greatest security concerns in the deployment of wireless networks. Thus communication in MANET functions...
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White Papers
Propagation Modeling and Analysis of Viruses in P2P Networks
July 15, 2008, 12:00am PDT
To counter the attacks of virus in P2P file-sharing networks, the model of virus propagation in P2P networks is proposed based on deep analysis on the features of file sharing and virus...
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White Papers
Vulnerability Analysis and Attacks on NFC-Enabled Mobile Phones
February 10, 2009, 12:00am PST
Near Field Communication (NFC)-enabled mobile phones and services are starting to appear in the field, yet no attempt was made to analyze the security of NFC-enabled mobile phones. The situation...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Efficient and Low-Cost Hardware Defense Against DNS Amplification Attacks
December 1, 2008, 12:00am PST
DNS amplification attacks utilize IP address spoofing and large numbers of open recursive DNS servers to perform the bandwidth consumption attack. During an attack, it ceaselessly fabricates DNS...
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White Papers
Incorporating Flexible, Configurable and Scalable Security to the Education Collaborative Environments
October 21, 2009, 12:00am PDT
This paper presents a service that provides security through the technology of Web Services. The use of web services to provide security in e-learning systems will complement the features of...
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White Papers
Detecting Insider Attacks Using Non-Negative Matrix Factorization
May 3, 2009, 12:00am PDT
It is a fact that vast majority of attention is given to protecting against external threats, which are considered more dangerous. However, some industrial surveys have indicated they have had...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
eL-MAC: An Enhanced Energy Efficient TDMA-Based MAC Protocol for Wireless Sensor Network
November 27, 2008, 12:00am PST
Wireless sensor network is becoming an attractive field in wireless network research community. The ability of network structure to maximize network lifetime is among the hot topic due to...
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White Papers
FAMA/TDMA Hybrid MAC for Wireless Sensor Networks
November 4, 2008, 12:00am PST
Wireless sensor networks are an emerging area of interest among embedded and wireless research groups around the globe. It is envisioned that these low power computers will become the enabling...
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Whitepapers
Optimization Models For Planning Wireless Mesh Networks : A Comparative Study
February 24, 2009, 12:00am PST
Recently, the authors proposed a multi-objective approach to optimize the planning of Wireless Mesh Networks (WMNs). Unlike other approaches where the deployment cost is the pivotal concept to...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
Adaptive Cooperation Strategy for Multiple Relays in 4G Wireless Systems
February 24, 2009, 12:00am PST
In wireless systems, a Relay Station (RS) is introduced to overcome capacity degradation in a shadowing area or a cell edge. Various relay schemes have been proposed to improve capacity by...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
An Energy-Aware Autonomic Architecture for Localization in Ubiquitous Networks
February 24, 2009, 12:00am PST
One of the main challenges in ubiquitous networks is localization. Many positioning methods have been proposed in the literature since this data is critical for numerous protocols and services....
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Whitepapers
Routing and Admission Control for Wireless Mesh Networks with Directional Antennas
February 24, 2009, 12:00am PST
The demand for QoS has made its support an essential component in today's wireless networks. The use of directional antennas in multi-hop wireless networks is known to provide substantial increase...
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Whitepapers
Outage Analysis of Wireless Systems Over Composite Fading/Shadowing Channels with Co-Channel Interference
February 24, 2009, 12:00am PST
In this paper, the authors present an outage analysis of wireless systems operating in gamma-shadowed Nakagami-faded environments where the desired signal also suffers from co-channel...
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Whitepapers
Dynamic Virtual Backbone Management for Service Discovery in Wireless Mesh Networks
February 24, 2009, 12:00am PST
In this paper, the authors propose a cross-layer service discovery architecture for Wireless Mesh Networks where wireless mesh routers dynamically establish a virtual backbone. The mesh nodes use...
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Whitepapers
Efficient Transmit Antenna Selection for Correlated MIMO Channels
February 24, 2009, 12:00am PST
While Multiple-Input Multiple-Output (MIMO) system gives many advantages to wireless communication, the complexity of multiple RF chains gives a burden to the system. Antenna selection is...
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Whitepapers
Realizing Wireless Cooperative Communications with the One-Bit Soft Forwarding Technique
February 24, 2009, 12:00am PST
To improve the efficiency and simplify the complexity of the relay in cooperative communication systems, a one-bit Soft Forwarding (SF) scheme is proposed to exploit the erroneously decoded...
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Whitepapers
Link Estimation Methods for Routing over FWA Mesh Network
February 24, 2009, 12:00am PST
With the popularity of mobile communication, the importance of backbone network of the mobile networks, i.e. mobile backhaul networks, has increased significantly. With the decreasing size of...
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Whitepapers
Multi-Rate Communications Using Layered Interleave-Division Multiple Access with Power Allocation
February 24, 2009, 12:00am PST
Interleave-Division Multiple-Access (IDMA) has recently been proposed as a multiuser scheme where users are separated by unique interleaver sequences. When used with low-complexity iterative...
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Whitepapers
Cross-Layer QoS Provisioning for Multimedia Transmissions in Cognitive Radio Networks
February 24, 2009, 12:00am PST
In Cognitive Radio (CR) networks, the perceived reduction of application layer Quality of Service (QoS), such as multimedia distortion, by secondary users may impede the success of CR...
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Whitepapers
Domain Identifiers in a Next Generation Internet Architecture
February 24, 2009, 12:00am PST
In this paper, the authors make the domain entity a first class citizen. The concept of Domain IDentifiers (DIDs) is introduced to effectively bring the domains to the next generation Internet...
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Whitepapers
Full Rate Orthogonal Space-Time Block Coding in OFDM Transmission Using Time Reversal
February 24, 2009, 12:00am PST
A novel method of utilizing the Channel State Information at the Transmitter (CSIT) for Orthogonal Frequency Division Multiplexing (OFDM) systems with multiple transmit antennas is presented in...
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Whitepapers
Rate-Optimized Power Allocation for OFDM Transmission with Multiple DF/Regenerative Relays and an Improved Protocol
February 24, 2009, 12:00am PST
The authors consider an OFDM (Orthogonal Frequency Division Multiplexing) Point-To-Point transmission scheme improved by means of multiple relays. For each carrier, symbols sent by the source...
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Whitepapers
A Multitaper Spectrum Based Detector for Cognitive Radio
February 24, 2009, 12:00am PST
Fully exploiting the phase and magnitude information in received data is crucial to the detection of Cognitive Radio signals, and this is usually done in the time domain. In fact, the same set of...
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Whitepapers
Cross-Layer Optimization of Multipoint Message Broadcast in MANETs
February 24, 2009, 12:00am PST
Multipoint-to-multipoint message broadcast is a demanding application scenario in ad-hoc networks. Adaptive management of wireless resources is necessary to support such applications in a safety...
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Whitepapers
On the Scalability Problem of Highway Ad hoc Network
February 24, 2009, 12:00am PST
Vehicular Ad-hoc NETwork in a highway is composed of high speed vehicles or nodes which induce fast topology changes in their configuration. In order to solve the connectivity and scalability...
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Whitepapers
Energy and Mobility Aware Clustering Technique for Multicast Routing Protocols in Wireless Ad Hoc Networks
February 24, 2009, 12:00am PST
A number of key issues arise in the implementation of scalable multicast protocols for wireless Mobile Ad-hoc NETworks (MANETs), namely energy consumption and data delivery over unstable/mobile...
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Whitepapers
Network-Centric Joint Radio Resource Policy in heterogeneous WiMAX-UMTS Networks for Streaming and Elastic traffic
February 24, 2009, 12:00am PST
The convergence of wireless networks is a key solution to deal with the ever-increasing need for bandwidth. In this compound radio environment, users can use concurrently diverse services through...
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Whitepapers
Turbo Codes in Coded Cooperation using the Forced Symbol Method
February 24, 2009, 12:00am PST
Recently, cooperative diversity has been introduced where single-antenna mobiles achieve uplink transmit diversity helping each other by relaying one another's messages. A variation of this...
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Whitepapers
On the Use of Control Packets for Intelligent Flooding in VANETs
February 24, 2009, 12:00am PST
Broadcasting will be extensively used in Vehicular Ad-hoc NETworks (VANET), mainly for spreading out safety messages. A number of Intelligent Flooding Schemes (IFSs) have been recently proposed to...
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Resource Allocation Algorithms with Reduced Complexity in MIMO Multi-Hop Fading Channels
February 24, 2009, 12:00am PST
MIMO multi-hop channel plays an important role in wireless ad hoc networks. In this paper, the authors investigate the resource allocation optimization problem in order to achieve throughput...
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Whitepapers
Packet Transmission Scheduling Algorithm for Wireless Sensor Networks with Energy Limited Mobile Sink
February 24, 2009, 12:00am PST
A transmission scheduling algorithm is proposed for Wireless Sensor Networks with energy limited mobile sinks. The algorithm is primarily based on the well known tradeoff between the expected...
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Whitepapers
On the Effect of Combined Equalization for MC-CDMA Systems in Correlated Fading Channels
February 24, 2009, 12:00am PST
Equalization techniques are considered in Multi Carrier-Code Division Multiple Access (MC-CDMA) systems to efficiently combine subcarriers contribution and improve the performance. In this paper,...
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Optimization of Adaptive Communication Systems with Feedback Channels
February 24, 2009, 12:00am PST
The main tendency in development of wireless Communication and data-transmission Systems (CS) is increasing the rate and the range of reliable transmission under simultaneous minimization of the...
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Whitepapers
An Efficient Subcarrier and Power Allocation Algorithm for Uplink OFDMA-Based Cognitive Radio Systems
February 24, 2009, 12:00am PST
In this paper, the authors address the subcarrier and power allocation problem in the uplink of an OFDMA system under the Cognitive Radio environment. The objective is to maximize the sum-rate of...
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Whitepapers
Modulation Selection from a Battery Power Efficiency Perspective: A Case Study of PPM and OOK
February 24, 2009, 12:00am PST
Sensor nodes in Wireless Sensor Networks (WSNs) are often expected to operate on batteries for a long period of time. Battery Power Efficiency (BPE) is therefore a critical factor dictating the...
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Whitepapers
An Enhanced Load-Balancing Approach Using Detour in Ad-hoc Networks
February 24, 2009, 12:00am PST
In this paper, the authors propose an enhanced load-balancing approach considering the on-going traffic sessions as well as new traffic sessions. In their scheme a congested node tries to escape...
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A Pragmatic Bit and Power Allocation Algorithm for NOFDM Signalling
February 24, 2009, 12:00am PST
In the last recent years, Multi-Carrier (MC) techniques have received an ever-increasing attention in the context of high data rate transmission over wireless frequency selective channels. In the...
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Transmit Antenna Selection Strategy in Amplify-and-Forward MIMO Relaying
February 24, 2009, 12:00am PST
The authors compare the outage performance by applying transmit antenna selection strategies to Amplify-and-Forward protocol in the MIMO relaying scenario. Although antenna selection is a...
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Whitepapers
Joint Scheduling and Cooperative Sensing in Cognitive Radios: A Game Theoretic Approach
February 24, 2009, 12:00am PST
In Cognitive Radio systems, cooperative spectrum sensing in the physical layer is highly desired to detect the Primary User accurately and to guarantee the Quality of Service (QoS) of the Primary...
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On the Performance of Cooperative Systems with Blind Relays over Nakagami-m and Weibull Fading
February 24, 2009, 12:00am PST
In this paper, the authors propose an accurate framework for the analysis of cooperative dual-hop wireless systems over fading channels, which use an Amplify and Forward (AF) relaying mechanism...
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A Novel Link Performance Prediction Method for Coded MIMO-OFDM Systems
February 24, 2009, 12:00am PST
Coded multi-antenna and multi-carrier techniques combined together with link resources adaptation algorithms are the key technologies toward efficient high-data-rate communications over wireless...
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Whitepapers
Lightweight Broadcast Authentication Protocols Reconsidered
February 24, 2009, 12:00am PST
In the emergency broadcast system (or emergency alert system) which aims to broadcast a warning information immediately in time of emergency such as a natural or civil disaster, computational...
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Whitepapers
An Energy-Efficient Cooperative MISO-Based Routing Protocol for Wireless Sensor Networks
February 24, 2009, 12:00am PST
Cooperative transmission technique is now widely considered as a promising approach to combat fading and achieve energy efficiency in wireless networks. In this paper, the authors focus on the...
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Whitepapers
Employing a Novel Two Tiered Network Structure to Extend the Lifetime of WSNs
February 24, 2009, 12:00am PST
Applications in Wireless Sensor Networks (WSNs) experience the energy hole problem, i.e., nodes closer to the Base Station drain their energy much faster than nodes that are far from the Base...
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Low Complexity Power Control and Beamforming for Multigroup Multicast MIMO Downlink Channel
February 24, 2009, 12:00am PST
In this paper, the authors address the problem of joint transmit beamforming and power control with receive beamforming for a multigroup multicast MIMO downlink channel. As receive beamformers,...
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Network Coded ALOHA for Wireless Multihop Networks
February 24, 2009, 12:00am PST
The purpose of this paper is to show the possibility of combining slotted ALOHA with network coding in wireless multihop networks. In particular, the authors focus on a star topology in which...
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Achievable Multicast Throughput for Homogeneous Wireless Ad Hoc Networks
February 24, 2009, 12:00am PST
The asymptotic capacity for wireless ad hoc networks has been intensively studied under different assumptions and channel models. Most existing work are based on two broad types of channel models....
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Joint Time, Frequency and Sampling Clock Synchronization for OFDM-Based Systems
February 24, 2009, 12:00am PST
Now-a-days, Orthogonal Frequency Division Multiplexing (OFDM) is the favorite technique in mobile wireless communications, because of its good performance on multipath environments, flexibility in...
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