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COOPERATIVE COMMUNICATIONS: Fundamental Limits and Practical Implementation

By Arnab Chakrabarti, Ashutosh Sabharwal and Behnaam AazhangArnab Chakrabarti, Ashutosh Sabharwal and Behnaam Aazhang

Abstract

Book chapterThis chapter summarizes theoretically achievable gains and the construction of practical codes for user-cooperation. Most of these results relate to the relay channel, which is a three-terminal channel that captures the essence of usercooperation and serves as one of the primary building blocks for cooperation on a larger scale. In investigating the fundamental limits of relaying, we present information-theoretic results on the achievable throughput of relay channel in mutual-information terms. We also include results on Gaussian channels, and for the practically important case of half-duplex relaying. In the domain of relay coding, we specifically discuss pragmatic code constructions for half as well as full-duplex relaying, using LDPC codes as components

Topics: cooperative communications, relay channel, information and coding theory, wireless communication, user cooperation, relay, broadcast, multiple-access, decode-and-forward, estimate-and-forward, amplify-and-forward, LDPC, cooperative communications, relay channel, information and coding theory, wireless communication, user cooperation, relay, broadcast, multiple-access, decode-and-forward, estimate-and-forward, amplify-and-forward, LDPC
Year: 2006
OAI identifier: oai:scholarship.rice.edu:1911/19781
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