- Subscribe to this page:
- RSS
- Email Alert
Institute of Electrical & Electronic Engineers
(11420 results)-
Whitepapers
STOD-RP: A Spectrum-Tree Based On-Demand Routing Protocol for Multi-Hop Cognitive Radio Networks
October 29, 2008, 12:00am PDT
A unique challenge for routing in cognitive radio networks is the collaboration between the route selection and spectrum decision. To solve this problem, in this paper a Spectrum-Tree base...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Column Generation Approach for Spectrum Allocation in Cognitive Wireless Mesh Network
October 29, 2008, 12:00am PDT
Cognitive Radio (CR) has the potential to substantially improve the system capacity and adaptability of Wireless Mesh Network (WMN). In this paper, the authors investigate the achievable...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Opportunistic Spectrum Access: Online Search of Optimality
October 29, 2008, 12:00am PDT
This paper presents an online tuning approach for the ad-hoc reinforcement learning algorithms which are used for solving the exploitation-exploration dilemma of the opportunistic spectrum access,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimal Discovery of Bandwidth Opportunities in Spectrum Agile Networks
October 29, 2008, 12:00am PDT
This paper proposes an adaptive approach that allows wireless devices with multi-band capabilities to determine the optimal number of Spectrum Bands (SBs) to be explored so that its net benefit...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Cooperative Relay Scheme for Secondary Communication in Cognitive Radio Networks
October 29, 2008, 12:00am PDT
In cognitive radio networks, Secondary Users (SUs) opportunistically exploit the spectrum unutilized by Primary Users (PUs). In this paper, the authors study the secondary communication where...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Automatic Determination of Spectral States for Cognitive Radio
October 29, 2008, 12:00am PDT
In this paper, the authors propose a method for automatically extracting distinct spectral states present in spectrum power measurements. The purpose is to gain information on the wireless...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Evaluation of the Concatenation of LDPC and RS Codes in Magnetic Recording Channel Using Field Programmable Gate Arrays
October 29, 2008, 12:00am PDT
Concatenations of inner Low-Density Parity-Check (LDPC) codes and outer Reed-Solomon (RS) codes were evaluated in magnetic recording channel models by simulations using Field Programmable Gate...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Distributed Detection of Primary Signals in Fading Channels for Cognitive Radio Networks
October 29, 2008, 12:00am PDT
In this paper, the authors investigate cooperative sensing schemes to identify primary signals in fading environment for Cognitive Radio (CR) networks employing energy detectors. They consider a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Using Object Metadata to Detect and Tolerate Attacks in Object Storage Devices
October 29, 2008, 12:00am PDT
Storage based intrusion detection techniques have introduced an additional level of protection to interconnected systems and their running services. Such systems perform intrusion detection even...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Enhancements to IEEE 802.11 MAC to Avoid Packet Collisions
October 29, 2008, 12:00am PDT
The IEEE 802.11 WLAN standard specifies two different ways in which a wireless STAtion (STA) can gain access to the channel - distributed channel access where each STA can access channel in a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Limited Feedback Beamforming Codebook Design for Dual-Polarized MIMO Channels
October 29, 2008, 12:00am PDT
Collocated dual-polarized Multiple-Input Multiple-Output (MIMO) antenna systems provide a cost-space efficient alternative to current MIMO antenna systems. A limited feedback beamforming technique...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Lattice Precoding Scheme for Flat-Fading MIMO Channels Based on Eigenvalue Decomposition
October 29, 2008, 12:00am PDT
A novel Lattice Precoding scheme based on Eigenvalue Decomposition (EDLP) is proposed for single user Multiple-Input Multiple-Output (MIMO) communication systems transmitting over slowly-varying...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Improved Tomlinson-Harashima Precoder Reducing Transmission Power
October 29, 2008, 12:00am PDT
Tomlinson-Harashima Precoder (THP) is an efficient interference pre-canceler, however, the transmission power is increased over the symbol power due to the modulo operation. In this paper, the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Game Theoretic Solutions for Precoding Strategies over the Interference Channel
October 29, 2008, 12:00am PDT
In this paper, precoding strategies over interference channels are analyzed from a game-theoretic perspective. The Nash equilibrium and Nash bargaining solutions of precoding matrices, as the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Hybrid Domain Compensation for Analog Impairments in OFDM Systems
October 29, 2008, 12:00am PDT
In Orthogonal Frequency Division Multiplexing (OFDM) systems with direct-conversion transceivers, transmission performance is severely degraded by analog impairments, typically, carrier frequency...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Selective Vector Perturbation Precoding and Peak to Average Power Ratio Reduction for OFDM Systems
October 29, 2008, 12:00am PDT
High Peak to Average Power Ratio (PAPR) is a serious drawback for Orthogonal Frequency Division Multiplexing (OFDM) system as it reduces the efficiency of high-power amplifiers commonly used in...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Robust Timing Recovery Algorithm for OFDM Systems
October 29, 2008, 12:00am PDT
The authors propose a new robust timing recovery algorithm with small symbol timing jitter for Orthogonal Frequency-Division Multiplexing (OFDM) systems. The concept of coarse FFT window selection...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance and Design of an Impulse Noise Detector for OFDM Systems With Reed-Solomon Erasure-Decoding
October 29, 2008, 12:00am PDT
The authors develop an analytical framework to evaluate the probability-of-miss and probability-of-false-alarm performance of an Impulse Noise (IN) detection algorithm for Orthogonal...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Numerical Performance Evaluation of OFDM Systems Affected by Transmitter Nonlinearities, Phase Noise and Channel Estimation Errors
October 29, 2008, 12:00am PDT
In this paper, the authors present a numerical approach to evaluate the bit error rate and mutual information of OFDM links affected by transmitter nonlinearities, phase noise, channel estimation...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Adaptive Modulation for OFDM-Based Multiple Description Progressive Image Transmission
October 29, 2008, 12:00am PDT
This paper addresses the use of adaptive modulation in progressive image transmission with multiple description coding in conjunction with an Orthogonal Frequency Division Multiplexing (OFDM)...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Robustness Analysis of Source Localization Using Gaussianity Measure
October 29, 2008, 12:00am PDT
Now-a-days, the source localization has been widely applied for wireless sensor networks. The Gaussian mixture model has been adopted for Maximum-Likelihood (ML) source localization schemes....
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Decision Fusion Over Noncoherent Fading Multiaccess Channels
October 29, 2008, 12:00am PDT
In this paper, the authors consider a situation where a number of remote sensors is linked to a decision fusion center by a non-coherent fading multi-access channel. Each sensor makes a binary...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Sufficient-Statistics Based Multiple Access Over Wireless Fading Channels
October 29, 2008, 12:00am PDT
In this paper, the authors study a communication scheme in which nodes transmit sufficient statistics of their observations over non-orthogonal medium access channels for distributed estimation....
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Second Order Statistics Based Algorithm for Blind Recognition of OFDM Based Systems
October 29, 2008, 12:00am PDT
An opportunistic radio is a radio able to detect the spectrum unused bands, and to adapt its transmission parameters in order to transmit within these free bands. An opportunistic terminal has...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Antenna Array Calibration Using Frequency Selection in OFDMA/TDD Systems
October 29, 2008, 12:00am PDT
This paper proposes a new antenna array calibration using frequency selection in OFDMA/TDD systems. In the proposed method, subbands or frequencies of good channel conditions are initially...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Efficient Near Blind Carrier Frequency Offset Estimation Scheme for MIMO-OFDM Systems
October 29, 2008, 12:00am PDT
A novel technique for the estimation of Carrier Frequency Offset (CFO) in Orthogonal Frequency Division Multiplexing (OFDM) based Multiple Input Multiple Output (MIMO) communication systems is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Digital Baseband Compensation for Mobile SFBC-OFDM Systems With Receiver I/Q Imbalance
October 29, 2008, 12:00am PDT
In-phase and Quadrature-phase (I/Q) imbalance is a major performance-limiting impairment for direct-conversion Orthogonal Frequency Division Multiplexing (OFDM) transceivers. I/Q imbalance...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Multiuser Carrier Frequency Offset Estimation for OFDMA Uplink With Generalized Carrier Assignment Scheme
October 29, 2008, 12:00am PDT
In this paper, the authors develop a blind Carrier Frequency Offsets (CFOs) estimation algorithm for multiusers in the uplink of an Orthogonal Frequency-Division Multiple-Access (OFDMA) system,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Allocation of Feedback Bits Among Users in Broadcast MIMO Channels
October 29, 2008, 12:00am PDT
Given a constraint on the total amount of feedback overhead, the authors investigate the allocation of feedback bits (i.e., codebook sizes) among users in a limited feedback Zero Forcing...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Iterative Receiver for Distributed Multi-Input Multi-Output (MIMO) Flat-Fading Channels
October 29, 2008, 12:00am PDT
In this paper, the authors consider the problem of joint channel and frequency offset estimation, data detection in a flat-fading Multi-Input Multi-Output (MIMO) system. They assume that each pair...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Adaptive SSFE Near-ML MIMO Detector With Dynamic Search Range and 80-103Mbps Flexible Implementation
October 29, 2008, 12:00am PDT
In this paper, the authors will present a near-ML (Maximum Likelihood) MIMO (Multiple Input Multiple Output) detector explicitely optimized for parallel programmable baseband architectures, such...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Multi-Core Sphere Decoder VLSI Architecture for MIMO Communications
October 29, 2008, 12:00am PDT
The sphere decoding algorithm finds applications in Multi-Input Multi-Output (MIMO) decoding, because it achieves near Maximum Likelihood (ML) detection performance with significantly reduced...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Multiuser MIMO E-SDM Systems: Performance Evaluation and Improvement in Time-Varying Fading Environments
October 29, 2008, 12:00am PDT
In the paper, performance of multiuser multiple-input multiple-output Eigenbeam-Space Division Multiplexing (ESDM) systems in the downlink transmission is evaluated in both uncorrelated and...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Estimation of MIMO Channel Capacity From Phase-Noise Impaired Measurements
October 29, 2008, 12:00am PDT
Due to the significantly reduced cost and effort for system calibration Time-Division Multiplexing (TDM) is a commonly used technique to switch between the transmit and receive antennas in...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Time-Varying FIR Equalization for MIMO Transmission Over Doubly Selective Channels
October 29, 2008, 12:00am PDT
In this paper, the authors propose time-varying FIR equalization techniques for Multiple-Input Multiple-Output (MIMO) transmission over doubly selective channels. The doubly selective channel is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
ISI-Free Cochannel Interference Whitening for Band limited Fading Channels
October 29, 2008, 12:00am PDT
The problem of cochannel interference mitigation using interference-plus-noise whitening receiver design in the presence of Inter-Symbol Interference (ISI) is considered. The effect of ISI on the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimal Channel Shortening Equalization for MIMO ISI Channels
October 29, 2008, 12:00am PDT
The authors consider the problem of channel shortening equalization to perform reduced complexity detection for MIMO channels with intersymbol interference and additive Gaussian noise. The problem...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Analysis of A Novel Blind Decision-Feedback Interference Cancellation Framework
October 29, 2008, 12:00am PDT
Interference cancellation is one major multiuser detection strategy for suppressing interference effects and improving system performance. In this paper, a novel blind decision-feedback...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
H-ARQ Based Non-Orthogonal Multiple Access With Successive Interference Cancellation
October 29, 2008, 12:00am PDT
In this paper, the authors consider Non-Orthogonal Multiple Access (NOMA) over block fading channels where the performance is limited by interference and fading. Re-transmission and interference...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
MIMO Receiver Design in the Presence of Radio Frequency Interference
October 29, 2008, 12:00am PDT
Multi-Input Multi-Output (MIMO) receivers have been designed and their communication performance analyzed under the assumption of additive Gaussian noise. Wireless transceivers, however, may be...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Analysis of Decode-and-Forward Relaying in Gamma-Gamma Fading Channels
March 1, 2012, 12:00am PST
Free space optical communication has recently drawn significant attention because of very large bandwidth, low implementation cost, and excellent security. The Intensity Modulation and Direct...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Average BER Analysis of Differential Modulation in DF Cooperative Communication System Over Gamma-Gamma Fading FSO Links
September 30, 2012, 12:00am PDT
In this paper, the authors study differential modulation for Decode-and-Forward (DF) based Free Space Optical (FSO) cooperative communication system over Gamma-Gamma fading channels. They derive...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Low Complexity Decoding in DF MIMO Relaying System
August 24, 2012, 12:00am PDT
The authors derive a Maximum-Likelihood (ML) decoder for Decode-and-Forward (DF) based Multiple-Input Multiple-Output (MIMO) cooperative system having equal number of antennas at the source and...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Decoding and Performance Bound of Demodulate-and-Forward Based Distributed Alamouti STBC
November 4, 2012, 12:00am PDT
In a Demodulate-and-Forward (DF) based cooperative communication system, erroneous relaying of the data leads to degradation in the performance of the destination receiver. However, a Maximum...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimized Transmission With Improper Gaussian Signaling in the K-User MISO Interference Channel
March 12, 2013, 12:00am PDT
This paper studies the achievable rate region of the K-user Gaussian Multiple-Input Single-Output Interference Channel (MISO-IC) with the interference treated as noise, when improper or circularly...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Effect of Receive Spatial Diversity on the Degrees of Freedom Region in Multi-Cell Random Beamforming
April 2, 2013, 12:00am PDT
The Random BeamForming (RBF) scheme, by exploiting multi-user diversity based scheduling, is able to achieve interference-free downlink transmissions with only partial Channel State Information...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Fair Traffic Relaying for Two-Source-One-Destination Wireless Networks
October 31, 2011, 12:00am PDT
The authors propose a communication strategy for a three-node wireless network, where the relay nodes generate their own data besides decoding and forwarding other nodes messages. Unlike previous...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Engineering the Virtual Node Layer for Reactive MANET Routing
August 18, 2011, 12:00am PDT
The VNLayer approach simplifies software development for MANET by providing the developers an abstraction of a network divided into fixed geographical regions, each containing a virtual server for...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimal Relay Selection for Physical-Layer Security in Cooperative Wireless Networks
May 3, 2013, 12:00am PDT
In this paper, the authors explore the physical-layer security in cooperative wireless networks with multiple relays where both Amplify-and-Forward (AF) and Decode-and-Forward (DF) protocols are...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Disruption-Tolerant Spatial Dissemination
April 21, 2011, 12:00am PDT
Spatial dissemination is a specific form of information dissemination that enables mobile users to send information to other mobile users who are or will appear at a specific location (a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Fast and Robust Content-Based Publish/Subscribe Architecture
May 23, 2008, 12:00am PDT
The authors present cluster-based publish/subscribe, a novel architecture that is not only resilient to event broker failures but also provides load balancing and fast event dissemination service....
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Rich Content Dissemination in Hybrid Cellular and 802.11 Ad Hoc Networks
June 21, 2012, 12:00am PDT
The authors design, implement, and evaluate a middleware system, HybCAST that leverages a hybrid cellular and ad hoc network to disseminate rich contents from a source to all mobile devices in a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Tailoring Group Membership Consistency for Mobile Networks
June 21, 2011, 12:00am PDT
Mobility and intermittent connectivity inject inaccuracy in determining group membership and exacerbate the time required to agree on the current group membership. In this paper, the authors...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
ReCREW: A Reliable Flash-Dissemination System
February 28, 2012, 12:00am PST
In this paper, the authors explore a new form of dissemination that arises in distributed, mission-critical applications called Flash Dissemination. This involves the rapid dissemination of rich...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Modeling Path Duration Time in Dynamic Convergecast Network
March 22, 2013, 12:00am PDT
Estimating communication latency is challenging in dynamic settings, e.g. mobile applications where the source and/or destination of the communication can move arbitrarily. In this paper, the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
QuARES: Quality-Aware Data Collection in Energy Harvesting Sensor Networks
August 31, 2011, 12:00am PDT
Renewable energy technology has become a promising solution to reduce energy concerns due to limited battery in wireless sensor networks. While this enables one to prolong the lifetime of a sensor...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Security Approach for Data Migration in Cloud Computing
May 1, 2013, 12:00am PDT
Cloud computing is a new paradigm that combines several computing concepts and technologies of the Internet creating a platform for more agile and cost-effective business applications and IT...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Management and Security for Grid, Cloud and Cognitive Networks
December 19, 2011, 12:00am PST
This paper presents a number of research initiatives related to innovative and cut-edge technologies for Cloud Computing. These are chiefly in the fields of environment security, quality...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Towards Benchmarking Intrusion Detection Systems for Virtualized Cloud Environments
February 25, 2013, 12:00am PST
The cloud computing paradigm, with virtualization as key enabling technology, is constantly gaining in popularity. However, the wide migration to cloud systems is challenged by security concerns....
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Greedy Spectrum Sharing Algorithm for Cognitive Radio Networks
March 9, 2012, 12:00am PST
In this paper, the authors propose a novel simple heuristic algorithm for scheduling the secondary link activation and provide a dynamic spectrum sharing in cognitive radio networks. This...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
BEP and Throughput Analysis of Incremental Selective Relaying in DS-CDMA Systems
December 28, 2012, 12:00am PST
In this paper, the authors derive exact form expressions for the Bit Error Probability (BEP) and throughput of cooperative Direct Sequence-Code Division Multiple Access (DS-CDMA) systems using...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Greedy Spectrum Sharing for Cognitive MIMO Networks
August 23, 2012, 12:00am PDT
Cognitive radio is regarded as an emerging technique developed to enhance the efficiency of spectrum usage. In this paper, the authors consider a point-to-multipoint secondary network sharing...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Distributed Relay Selection Strategy Based on Source-Relay Channel
June 11, 2010, 12:00am PDT
Recent results on cooperative networks have shown great potential in their ability to improve the system performance in the presence of fading channels by using different users' antennas. However,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimal Spectrum Sharing in MIMO Cognitive Radio Networks Via Semidefinite Programming
November 17, 2010, 12:00am PST
In Cognitive Radio (CR) networks with Multiple-Input Multiple-Output (MIMO) links, Secondary Users (SUs) can exploit "Spectrum holes" in the space domain to access the spectrum allocated to a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Distributionally Robust Slow Adaptive OFDMA With Soft QoS Via Linear Programming
February 18, 2013, 12:00am PST
Being the predominant air interface of next-generation wireless standards, Orthogonal Frequency Division Multiple Access (OFDMA) is well known for its flexibility in allocating subcarriers to...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimal Schedules for the D-Node Half Duplex Phase Fading MRC
July 3, 2009, 12:00am PDT
In this paper, the authors extend their previous work on the half duplex Multiple-Relay Channel (MRC). A capacity upper bound based on the max-flow min-cut argument and achievable transmission...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Capacity Theorems for the AWGN Multi-Way Relay Channel
June 18, 2010, 12:00am PDT
The L-user additive white Gaussian noise multi-way relay channel is considered, where multiple users exchange information through a single relay at a common rate. Existing coding strategies, i.e.,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Achievable Rate Regions of the Butterfly Network With Noisy Links and End-to-End Error Correction
August 24, 2011, 12:00am PDT
In this paper, the authors characterize achievable rate regions of different decoding strategies on the butterfly network with noisy links and end-to-end error correction. It has been shown, by...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
The Binary-Symmetric Parallel-Relay Network
June 18, 2010, 12:00am PDT
The authors present capacity results of the binary-symmetric parallel-relay network, where there is one source, one destination, and K relays in parallel. They show that forwarding relays, where...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Functional-Decode-Forward for the General Discrete Memoryless Two-Way Relay Channel
February 3, 2012, 12:00am PST
The authors consider the general discrete memoryless two-way relay channel, where two users exchange messages via a relay, and propose two functional-decode-forward coding strategies for this...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
The Capacity of a Class of Multi-Way Relay Channels
February 16, 2012, 12:00am PST
The capacity of a class of multi-way relay channels, where L users communicate via a relay (at possibly different rates), is derived for the case where the channel outputs are modular sums of the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
The Two-Way Relay Network With Arbitrarily Correlated Sources and an Orthogonal MAC
November 17, 2011, 12:00am PST
The problem of lossless joint source-channel coding for the two-way relay network with an orthogonal multiple access channel is studied. Necessary and sufficient conditions for reliable...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
The Finite Field Multi-Way Relay Channel With Correlated Sources: The Three-User Case
November 17, 2011, 12:00am PST
The three-user finite field multi-way relay channel with correlated sources is considered. The three users generate possibly correlated messages, and each user is to transmit its message to the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
On Achievable Rate Regions of the Asymmetric AWGN Two-Way Relay Channel
November 17, 2011, 12:00am PST
This paper investigates the additive white Gaussian noise two-way relay channel, where two users exchange messages through a relay. Asymmetrical channels are considered where the users can...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Coding Strategies for Multiple-Access Channels With Feedback and Correlated Sources
October 1, 2007, 12:00am PDT
The Multiple-Access Channel with Feedback and Correlated Sources (MACFCS) models a sensor network in which sensors collect and transmit correlated data to a common sink. The authors present four...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Optimal Coding Strategy for the Binary Multi-Way Relay Channel
April 1, 2010, 12:00am PDT
The authors derive the capacity of the binary multi-way relay channel, in which multiple users exchange messages at a common rate through a relay. The capacity is achieved using a novel...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Information Theoretic Take on Time Reversal for Nonstationary Channels
April 1, 2013, 12:00am PDT
It has been shown that Time-Reversal (TR) techniques focus energy back to the dominant scatters, lead to super-resolution focusing, and gains in detection. Time reversal has so far mainly been...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Using Sybil Identities for Primary User Emulation and Byzantine Attacks in DSA Networks
January 17, 2012, 12:00am PST
In this paper, the authors investigate a new type of denial-of-service attack in dynamic spectrum access networks - Sybil-enabled attack. In this attack, the attacker not only launches the Primary...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Analysis of Coordinated Denial-of-Service Attacks in IEEE 802.22 Networks
April 1, 2011, 12:00am PDT
The cognitive radio enabled IEEE 802.22 Wireless Regional Area Network (WRAN) is designed to opportunistically utilize the unused or under-utilized TV bands. However, due to the open nature of...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimal Joint Power Allocation and Phase Control for DS-CDMA Cognitive Radio Networks
January 17, 2012, 12:00am PST
Efficient and fair resource allocation in Cognitive Radio (CR) networks under strict constraints imposed by the primary network is a challenging problem for underlay Dynamic Spectrum Access (DSA)...
Provided by Institute of Electrical & Electronic Engineers
Keep Up with TechRepublic
Submit a Paper
Get your content listed in our directory!
Our directory is the largest library of vendor-supplied technical content on the Web. It’s also the first place IT decision makers turn to when researching technology solutions. Our members are already finding your competitors’ papers here - shouldn’t they find yours, too? It's FREE so click here and submit your white paper, case study, data sheet, research report, or other document today!
