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

Xiang Chen, Ming Xiang Xie

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

Abstract

User Cooperation is a promising technology to obtain diversity gain at terminals. According to the traditional decode-and-forward scheme, relay node help to transmit source node's information with fixed number of modulation symbols all the time. It is not optimal in view of spectral efficiency, especially when the channel state is good. This paper introduces the adaptive DF scheme based on the minus exponential effective-SNR mapping (EESM) model. The optimal number to relay is predicted accurately. Furthermore, adaptive modulation is supported. The reliability requirement is satisfied, and the radio resource is saved for transmitting new information. Theoretical analysis and simulation results indicate that the adaptive DF scheme improves the spectral efficiency significantly.

Original languageEnglish
Title of host publicationProceedings - 2014 International Conference on Wireless Communication and Sensor Network, WCSN 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages148-152
Number of pages5
ISBN (Electronic)9781479970919
DOIs
Publication statusPublished - 16 Mar 2014
Externally publishedYes
Event2014 International Conference on Wireless Communication and Sensor Network, WCSN 2014 - Wuhan, China
Duration: 13 Dec 201414 Dec 2014

Publication series

NameProceedings - 2014 International Conference on Wireless Communication and Sensor Network, WCSN 2014

Conference

Conference2014 International Conference on Wireless Communication and Sensor Network, WCSN 2014
Country/TerritoryChina
CityWuhan
Period13/12/1414/12/14

Keywords

  • decode-and-forward
  • the minus exponential effective-SNR mapping model
  • user cooperation

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