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Institute of Electrical & Electronic Engineers
(11422 results)-
Whitepapers
Architecting a National Optical Fiber Open-Access Network: The Australian Challenge
August 1, 2012, 12:00am PDT
In this paper, the authors discuss the challenges faced when building a national optical access network that is ubiquitous (i.e., reaches all households nationwide) and open access (i.e., allows...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Confidential and Secure Broadcast in Wireless Sensor Networks
July 7, 2007, 12:00am PDT
Wireless sensor networks need broadcast for operations such as software updates, network queries, and command dissemination. Alongside ensuring authenticity of the source and data, keeping the...
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Whitepapers
Survey on Signaling Techniques for Cognitive Networks
May 18, 2011, 12:00am PDT
Network evolution towards self-aware autonomous adaptive networking aims at reducing the burden of configuring and managing networks, which leads to performance degradation. In order to optimize...
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Whitepapers
TCP Kikolo for Performance Improvement in Highspeed Networks in Presence of Packet Losses
November 5, 2010, 12:00am PDT
TCP shows poor performance in high speed networks with large latencies as well as in wireless networks where link error rates are high. The main two factors degrading TCP performance are related...
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Whitepapers
Context-Aware Receiver-Driven Retransmission Control in Wireless Local Area Networks
August 6, 2009, 12:00am PDT
Automatic Repeat reQuest (ARQ) techniques employed by leading wireless technologies aim at compensating the high error rates due to radio impairments, but do not offer any differentiated levels of...
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Whitepapers
Distributed Protocol Stacks: A Framework for Balancing Interoperability and Optimization
May 27, 2008, 12:00am PDT
This paper discusses architectural details related to a possible evolution in the protocol stack design, enabling to move a set of functions implemented at a particular layer of the protocol stack...
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Whitepapers
Cross-Layer Error Control Optimization in 3G LTE
December 19, 2007, 12:00am PST
3G Long-Term Evolution (LTE) is a recent effort taken by cellular industries to step into wireless broadband market. The key enhancements target an introduction of new all-IP architecture,...
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Whitepapers
Beyond Shannon: The Quest for Fundamental Performance Limits of Wireless Ad Hoc Networks
May 1, 2011, 12:00am PDT
The authors describe a new theoretical framework for determining fundamental performance limits of wireless ad hoc networks. The framework expands the traditional definition of Shannon capacity to...
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Whitepapers
Capacity Theorems for Discrete, Finite-State Broadcast Channels With Feedback and Unidirectional Receiver Cooperation
December 1, 2010, 12:00am PST
In this paper, the authors consider the discrete, time-varying Broadcast Channel (BC) with memory under the assumption that the channel states belong to a set of finite cardinality. They study the...
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Whitepapers
Adaptive Modulation for MIMO Systems With Channel Prediction Errors
August 1, 2010, 12:00am PDT
The performance of Multiple-Input Multiple-Output (MIMO) systems using spatial multiplexing is analyzed under channel prediction errors. The authors derive exact closed-form expressions for the...
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Whitepapers
Generalizing Capacity: New Definitions and Capacity Theorems for Composite Channels
July 1, 2010, 12:00am PDT
The authors consider three capacity definitions for composite channels with channel side information at the receiver. A composite channel consists of a collection of different channels with a...
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Whitepapers
The Capacity Region of the Degraded Finite-State Broadcast Channel
December 28, 2009, 12:00am PST
The authors introduce and study the discrete, Finite-State Broadcast Channel (FSBC) with memory. For this class of channels they define physical degradedness and stochastic degradedness, and...
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Whitepapers
Capacity Regions and Bounds for a Class of Z-Interference Channels
November 1, 2009, 12:00am PDT
The authors define a class of Z-interference channels for which they obtain a new upper bound on the capacity region. The bound exploits a technique first introduced by Korner and Marton. A...
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Whitepapers
Source and Channel Coding for Correlated Sources Over Multiuser Channels
July 1, 2010, 12:00am PDT
Source and channel coding over multiuser channels in which receivers have access to correlated source side information are considered. For several multiuser channel models necessary and sufficient...
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Whitepapers
Compound Multiple-Access Channels With Partial Cooperation
June 1, 2009, 12:00am PDT
A two-user discrete memoryless compound Multiple-Access Channel (MAC) with a common message and conferencing decoders is considered. The capacity region is characterized in the special cases of...
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Whitepapers
Capacity Gain From Two-Transmitter and Two-Receiver Cooperation
February 1, 2008, 12:00am PST
Capacity improvement from transmitter and receiver cooperation is investigated in a two-transmitter, two-receiver network with phase fading and full channel state information available at all...
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Whitepapers
Estimation Diversity and Energy Efficiency in Distributed Sensing
September 1, 2007, 12:00am PDT
Distributed estimation based on measurements from multiple wireless sensors is investigated. It is assumed that a group of sensors observe the same quantity in independent additive observation...
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Whitepapers
Cross-Layer Design Proposals for Wireless Mobile Networks: A Survey and Taxonomy
April 8, 2008, 12:00am PDT
Third-Generation (3G) and beyond 3G mobile communication systems must provide interoperability with the Internet, increase throughput for mobile devices, and optimize their operation for...
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Whitepapers
A Cross-Layer Adaptive Algorithm for Multimedia QoS Fairness in WLAN Environments Using Neural Networks
January 22, 2009, 12:00am PST
The authors address the problem of providing fair multimedia Quality-of-Service (QoS) in IEEE 802.11 distributed co-ordination function-based wireless local area networks in the infrastructure...
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Whitepapers
Packet Scheduling Over DVB-S2 Through GSE Encapsulation
October 29, 2008, 12:00am PDT
Satellite digital video broadcasting is deeply changing : the next generation is dedicated to packet based communications and introduces fade mitigation techniques leading to variable throughput....
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Whitepapers
A Power Based Algorithm for Efficient Radio Resource Management Policy in Integrated Terrestrial/HAP MBMS Systems
October 29, 2008, 12:00am PDT
Focus of the present paper is the integration between High Altitude Platforms (HAPs) and terrestrial UMTS system to support Multimedia Broadcast/Multicast Services. HAPs are characterised by a...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Resource Management in Hybrid DVB-RCS and WiFi Networks
October 29, 2008, 12:00am PDT
Satellite networks are an attractive solution to provide broadband communication services anytime, anywhere with quality of service support. The aim of this paper is to study the integration of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Minimum Hop Count and Load Balancing Metrics Based on Ant Behavior Over a Haps Mesh
October 29, 2008, 12:00am PDT
In this paper, the authors propose a routing algorithm based on swarm intelligence studies. In particular, this algorithm is based on AntNet routing with the extensions of novel metrics for the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Optimizing TCP Performance Through Joint Channel Coding and Power Management in Power Constrained Satellite Networks
October 29, 2008, 12:00am PDT
In this paper an analytical framework is introduced for the optimization of TCP performance through joint channel coding and transmission power management in satellite communications, where both...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Quickest Detection in Cognitive Radio: A Sequential Change Detection Framework
October 29, 2008, 12:00am PDT
In this paper, the agility of detection algorithms in cognitive radio is studied. A sequential change detection framework is developed to investigate the delay of detection algorithms. Three...
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Whitepapers
Blind Multi-Sources Detection and Localization for Cognitive Radio
October 29, 2008, 12:00am PDT
In this paper, the authors introduce a spectrum holes detection approach, which combines blind modulation classification, angle of arrival estimation and number of sources detection. They perform...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Robust Energy Detection Based on Bayesian Estimation for Cognitive Radio
October 29, 2008, 12:00am PDT
The energy detection is recently studied extensively as a promising candidate for primary signals detection in cognitive radio. However, one fundamental disadvantage of energy detection is that...
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Whitepapers
Analysis of Equal Gain Combining in Energy Detection for Cognitive Radio Over Nakagami Channels
October 29, 2008, 12:00am PDT
Detection of spectrum holes in cognitive radio environment is a problem of significant interest. To best utilize the spectrum holes by secondary users, the detection of such spectrum holes quickly...
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Whitepapers
Modeling and Comparison of Primary User Detection Techniques in Cognitive Radio Networks
October 29, 2008, 12:00am PDT
In this paper, the authors investigate the problem of spectrum sensing in cognitive radio networks. Compared with related work that aims to propose techniques at different layers of the network...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Spectrum Sensing Over SIMO Multi-Path Fading Channels Based on Energy Detection
October 29, 2008, 12:00am PDT
One of the techniques for spectrum sensing is the energy detection of signals from primary transmitters. However, when detecting in a certain frequency band, this technique suffers from the random...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Detection Timing and Channel Selection for Periodic Spectrum Sensing in Cognitive Radio
October 29, 2008, 12:00am PDT
In this paper, detection timing and channel selection for periodic spectrum sensing are investigated to improve the performance of Cognitive Radio (CR) users. Designed to maximize the channel...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Correlation Between Local Sensors in Hard Cooperative Spectrum Sensing: Beneficial or Detrimental?
October 29, 2008, 12:00am PDT
In Hard Cooperative Spectrum Sensing (HCSS) for Cognitive Radio (CR), where local secondary users (sensors) sense whether primary users exist or not and then send decisions to the center where the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cooperative Spectrum Allocation in Centralized Cognitive Networks Using Bipartite Matching
October 29, 2008, 12:00am PDT
Conflict free spectrum allocation for secondary users in cognitive networks is a challenging problem, since the accessible spectrum is shared among users. The problem becomes to be especially...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Comparison of Energy Detectability Models for Spectrum Sensing
October 29, 2008, 12:00am PDT
Energy detection has been adopted as an alternative spectrum sensing method for cognitive radios due to its low computational complexity and not requiring a priori information of the signal to be...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Asynchronous Distributed Power Control Under Interference Temperature Constraints
October 29, 2008, 12:00am PDT
Cognitive radio makes it possible for an unlicensed user to access a spectrum opportunistically. This paper addresses the problem of power control in cognitive radio networks, to maximize the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Dynamical Game Approach Rate Adaptation in Cognitive Radio Systems
October 29, 2008, 12:00am PDT
This paper addresses the secondary user rate adaptation problem in cognitive radio networks. By modeling primary user activities and secondary user block fading channels as finite state Markov...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Spectral Leakage Suppression of DFT-Based OFDM Via Adjacent Subcarriers Correlative Coding
October 29, 2008, 12:00am PDT
In spectrum pooling applications, the spectral leakage of DFT-based OFDM systems should be divided into two parts, In-Band-Out-of-SubBand (IBOSB) leakage and Out-Of-Band (OOB) radiation. A scheme...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Spatial Spectrum Holes for Cognitive Radio With Directional Transmission
October 29, 2008, 12:00am PDT
In this paper, the authors propose a Cognitive Radio (CR) transmission scheme, which enables secondary users to coexist with primary users by exploiting Spatial Spectrum Holes (SSHs) through...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Modulation Recognition in Multipath Fading Channels Using Cyclic Spectral Analysis
October 29, 2008, 12:00am PDT
In this paper, the authors propose a novel signal classification method using cyclic spectral analysis and neural networks for multipath fading channels. The proposed system provides excellent...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Hybrid Wireless-Optical Broadband Access Network (WOBAN): Capacity Enhancement for Wireless Access
October 29, 2008, 12:00am PDT
Noting that the optical part of a hybrid Wireless-Optical Broadband Access Network (WOBAN) has high capacity, the authors need to enhance the capacity for wireless access using a low-cost...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Resource Allocation for Downlink Channel Transmission Based on Superposition Coding
April 6, 2013, 12:00am PDT
The authors analyze the problem of transmitting information to multiple users over a shared wireless channel. The problem of Resource Allocation (RA) for the users with the knowledge of their...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
On Achievable Rates for Channels With Mismatched Decoding
May 2, 2013, 12:00am PDT
The problem of mismatched decoding for discrete memoryless channels is addressed. A mismatched cognitive multiple-access channel is introduced, and an inner bound on its capacity region is derived...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Filter Design With Secrecy Constraints: The MIMO Gaussian Wiretap Channel
May 2, 2013, 12:00am PDT
This paper considers the problem of filter design with secrecy constraints, where two legitimate parties (Alice and Bob) communicate in the presence of an Eavesdropper (Eve), over a Gaussian...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A 2.0 Gb/s Throughput Decoder for QC-LDPC Convolutional Codes
May 1, 2013, 12:00am PDT
In this paper, the authors propose decoder architecture for Low Density Parity-Check Convolutional Code (LDPCCC). Specifically, the LDPCCC is derived from a Quasi-Cyclic (QC) LDPC block code. By...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Delay and Doppler Spreads of Non-Stationary Vehicular Channels for Safety Relevant Scenarios
May 15, 2013, 12:00am PDT
Vehicular communication channels are characterized by a non-stationary time- and frequency-selective fading process due to rapid changes in the environment. The non-stationary fading process can...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Coverage and Throughput Analysis With a Non-Uniform Femtocell Deployment
May 16, 2013, 12:00am PDT
In this paper, the authors propose a non-uniform femtocell network deployment scheme, in which the femtocell Base Stations (BSs) are not utilized in the region within a prescribed distance away...
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Whitepapers
The Thinnest Path Problem
May 16, 2013, 12:00am PDT
The authors consider the thinnest path problem in wireless ad hoc networks. For a given source and a destination, the thinnest path problem asks for a path from the source to the destination that...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Wide Band Time-Correlated Model for Wireless Communications Under Impulsive Noise Within Power Substation
May 17, 2013, 12:00am PDT
The installation of wireless technologies in power substations requires characterizing the impulsive noise produced by the high-voltage equipment. Substation impulsive noise might interfere with...
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Whitepapers
The Water-Filling Game in Fading Multiple-Access Channels
May 1, 2008, 12:00am PDT
A game-theoretic framework is developed to design and analyze the resource allocation algorithms in fading Multiple-Access Channels (MACs), where the users are assumed to be selfish, rational, and...
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Whitepapers
Communication Requirement for Reliable and Secure State Estimation and Control in Smart Grid
September 1, 2011, 12:00am PDT
System state estimation and control are important issues to ensure the stability and reliability of the smart grid system. In this paper, the problem of how to securely estimate the system state...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cognitive Medium Access: Exploration, Exploitation, and Competition
February 1, 2011, 12:00am PST
This paper considers the design of efficient strategies that allow cognitive users to choose frequency bands to sense and access among multiple bands with unknown parameters. First, the scenario...
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Whitepapers
Distributed Cognitive Radio Network Management Via Algorithms in Probabilistic Graphical Models
February 1, 2011, 12:00am PST
In this paper, cognitive radio wireless networks are investigated, in which a number of Primary Users (PUs) transmit in orthogonal frequency bands, and a number of Secondary Users (SUs) monitor...
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Whitepapers
Quickest Search Over Multiple Sequences
August 1, 2011, 12:00am PDT
The problem of sequentially finding an independent and identically distributed sequence that is drawn from a probability distribution Q1 by searching over multiple sequences, some of which are...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Privacy-Security Trade-Offs in Biometric Security Systems-Part II: Multiple Use Case
March 1, 2011, 12:00am PST
In this paper, the performance of reusable biometric security systems, in which the same biometric information is reused in multiple locations, is analyzed. The scenario in which the subsystems...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Privacy-Security Trade-Offs in Biometric Security Systems-Part I: Single Use Case
March 1, 2011, 12:00am PST
In this paper, the design of single-use biometric security systems is analyzed from an information theoretic perspective. A fundamental trade-off between privacy, measured by the normalized...
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Whitepapers
A Unified Framework for Key Agreement Over Wireless Fading Channels
January 17, 2011, 12:00am PST
The problem of key generation over wireless fading channels is investigated. First, a joint source-channel approach that combines existing source and channel models for key agreement over wireless...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Key Generation Algorithms for Pairwise Independent Networks Based on Graphical Models
April 8, 2013, 12:00am PDT
The authors consider two secret key generation problems under a pairwise independent network model, and propose low complexity key generation schemes in a framework that connects their problems to...
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Whitepapers
Improving Service Differentiation of Immediate and Advance Reservation in Resource-Partitioned Optical WDM Networks
January 8, 2013, 12:00am PST
As a result of the rise of Cloud and Grid computing, network operators are requested to improve their resource provisioning systems. In such scenarios, Advance Reservation (AR) and Immediate...
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Whitepapers
Analytical Blocking Probability Model for Hybrid Immediate and Advance Reservations in Optical WDM Networks
December 18, 2012, 12:00am PST
Immediate Reservation (IR) and Advance Reservation (AR) are the two main reservation mechanisms currently implemented on large-scale scientific optical networks. They can be used to satisfy both...
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Whitepapers
Buffer Sharing on an OFDMA Downlink
December 15, 2010, 12:00am PST
In this paper, the authors consider the allocation of buffer space to data streams sharing a common high-speed wireless transmitter. As an example, they focus on an OFDMA-based downlink system...
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Whitepapers
Optimal Scheduling on an Energy Harvesting Broadcast Channel
June 22, 2011, 12:00am PDT
In this paper, the authors formulated and solved the offline transmission completion time minimization problem on an energy harvesting broadcast link. They have observed that, in the optimal...
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Minimization of Transmission Duration of Data Packets Over an Energy Harvesting Fading Channel
July 16, 2012, 12:00am PDT
Energy harvesting communication systems involve transmitters being powered by environmental sources such as solar, vibration, and thermal effects, either alone or as supplement to the power drawn...
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Whitepapers
Optimal Offline Broadcast Scheduling With an Energy Harvesting Transmitter
March 21, 2012, 12:00am PDT
The authors consider an energy harvesting transmitter broadcasting individual data to two receivers. Data packets intended for each user are assumed to arrive at arbitrary but known instants. The...
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Whitepapers
Time-Efficient Protocols for Neighbor Discovery in Wireless Ad Hoc Networks
February 6, 2013, 12:00am PST
Neighbor Discovery (ND) is a basic and crucial step for initializing wireless ad hoc networks. A fast, precise, and energy-efficient ND protocol has significant importance to subsequent operations...
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Whitepapers
Community-Aware Opportunistic Routing in Mobile Social Networks
February 12, 2013, 12:00am PST
Mobile Social Networks (MSNs) are a kind of delay tolerant network that consists of lots of mobile nodes with social characteristics. Recently, many social-aware algorithms have been proposed to...
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Whitepapers
Fine-Grained Feature-Based Social Influence Evaluation in Online Social Networks
May 9, 2013, 12:00am PDT
The evaluation of a user's social influence is essential for various applications in Online Social Networks (OSNs). The authors propose a fine-grained Feature-Based social Influence (FBI)...
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Whitepapers
Towards Differential Query Services in Cost-Efficient Clouds
May 2, 2013, 12:00am PDT
Cloud computing as an emerging technology trend is expected to reshape the advances in information technology. In a cost-efficient cloud environment, a user can tolerate a certain degree of delay...
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Whitepapers
Virtual Network Embedding With Opportunistic Resource Sharing
February 15, 2013, 12:00am PST
Network virtualization has emerged as a promising approach to overcome the ossification of the Internet. A major challenge in network virtualization is the so-called virtual network embedding...
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Whitepapers
SmartAssoc: Decentralized Access Point Selection Algorithm to Improve Throughput
October 11, 2012, 12:00am PDT
As the first step of the communication procedure in 802.11, an unwise selection of the Access Point (AP) hurts one client's throughput. This performance downgrade is usually hard to be offset by...
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Behavioral Malware Detection in Delay Tolerant Networks
September 12, 2012, 12:00am PDT
The Delay-Tolerant-Network (DTN) model is becoming a viable communication alternative to the traditional infrastructural model for modern mobile consumer electronics equipped with short-range...
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The Design and Evaluation of an Information Sharing System for Human Networks
January 14, 2013, 12:00am PST
With fast-growing consumer demands and rapidly-developing mobile technologies, portable mobile devices are becoming a necessity of the people daily lives. However, existing mobile devices rely on...
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Whitepapers
An Improved Parameter Computation Method for a MIMO V2V Rayleigh Fading Channel Simulator Under Non-Isotropic Scattering Environments
February 1, 2013, 12:00am PST
Accurate and efficient Vehicle-To-Vehicle (V2V) channel simulation models play a major role in the design and performance evaluation of V2V communication systems. Deterministic Sum-of-Sinusoids...
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Whitepapers
Energy Efficiency Evaluation of Cellular Networks Based on Spatial Distributions of Traffic Load and Power Consumption
March 1, 2013, 12:00am PST
Energy efficiency has gained its significance when service providers' operational costs burden with the rapidly growing data traffic demand in cellular networks. In this paper, the authors propose...
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Wideband Spectrum Sensing for Cognitive Radio Networks: A Survey
April 1, 2013, 12:00am PDT
Cognitive radio has emerged as one of the most promising candidate solutions to improve spectrum utilization in next generation cellular networks. A crucial requirement for future cognitive radio...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Ultra-Wideband Channel Model for Intra-Vehicular Wireless Sensor Networks Beneath the Chassis: From Statistical Model to Simulations
January 1, 2013, 12:00am PST
Intra-Vehicular Wireless Sensor Networks (IVWSNs) are a promising new research area that can provide part cost, assembly, maintenance savings, and fuel efficiency through the elimination of the...
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Whitepapers
A Novel Energy-Efficient Training Method for Receive Antenna Selection
June 30, 2010, 12:00am PDT
Receive Antenna Selection (AS), in which only a subset of antennas receive simultaneously at any time, requires the transmitter to send pilots multiple times so that the receiver can acquire...
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Medial Axis Construction and Applications in 3D Wireless Sensor Networks
April 3, 2013, 12:00am PDT
The medial axis of a shape provides a compact abstraction of its global topology and a proximity of its geometry. The construction of medial axis in Two-Dimensional (2D) sensor networks has been...
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Cut Graph Based Information Storage and Retrieval in 3D Sensor Networks With General Topology
April 3, 2013, 12:00am PDT
The authors address the problem of in-network information processing, storage, and retrieval in Three-Dimensional (3D) sensor networks in this research. They propose a geographic location free...
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Self-Interest-Driven Incentives for Ad Dissemination in Autonomous Mobile Social Networks
April 3, 2013, 12:00am PDT
In this paper, the authors propose a Self-Interest-Driven (SID) incentive scheme to stimulate cooperation among selfish nodes for ad dissemination in autonomous mobile social networks. As a key...
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Relay Position Optimization Improves Finite-SNR Diversity Gain of Decode-and-Forward MIMO Relay Systems
November 1, 2012, 12:00am PDT
Large-scale propagation effect plays an important role in Multiple-Input Multiple-Output (MIMO) relay systems. In particular, the position of the relay (between the source and destination)...
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