An LDPC coded adaptive amplify-and-forward scheme based on the EESM model

Xiang Chen*, Mingxiang Xie

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Cooperative communication is a promising technology to obtain diversity gain at terminals. According to the traditional amplify-and-forward (AF) scheme, relay node helps transmit source node’s information with fixed transmission power all the time. It is not optimal in view of power efficiency, especially when the channel state is good. This paper introduces the adaptive AF scheme based on the minus exponential effective-SNR mapping (EESM) model. The optimal power to relay is predicted accurately. The reliability requirement is satisfied, and the power is saved for transmitting new information. Theoretical analysis and simulation results indicate that the adaptive AF scheme improves the power efficiency significantly.

Original languageEnglish
Title of host publicationWireless Communications, Networking and Applications, Proceedings of WCNA 2014
EditorsQing-An Zeng
PublisherSpringer Verlag
Pages105-112
Number of pages8
ISBN (Print)9788132225799
DOIs
Publication statusPublished - 2016
Externally publishedYes
EventInternational Conference on Wireless Communications, Networking and Applications, WCNA 2014 - Shenzen, China
Duration: 27 Dec 201428 Dec 2014

Publication series

NameLecture Notes in Electrical Engineering
Volume348
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference on Wireless Communications, Networking and Applications, WCNA 2014
Country/TerritoryChina
CityShenzen
Period27/12/1428/12/14

Keywords

  • Amplify-and-forward
  • The minus exponential effective-SNR mapping (EESM) model
  • User cooperation

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