Multi-relay cooperative OFDM with amplify-and-forward relaying invited paper

Yanwu Ding, Murat Uysal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we investigate a cooperative system with multiple relays and amplify-and-forward relaying over frequency-selective channels. To extract the available rich multipath diversity, we employ orthogonal frequency division multiplexing (OFDM) with precoding. Through the derivation of pair wise error probability (PEP), we demonstrate that the maximum diversity order is given by the summation of the channel length in the direct link and the minimum of channel lengths in each relaying link which is further confirmed by simulation results. Based on the PEPexpression, we also propose two relay selection strategies; one is on per-subcarrier basis and the other is on all-subcarriers basis. Our simulation results indicate that both strategies result in performance improvements.

Original languageEnglish (US)
Title of host publicationRWS 2009 IEEE Radio and Wireless Symposium, Proceedings
Pages614-617
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE Radio and Wireless Symposium, RWS 2009 - San Diego, CA, United States
Duration: Jan 18 2008Jan 22 2008

Publication series

NameRWS 2009 IEEE Radio and Wireless Symposium, Proceedings

Other

Other2009 IEEE Radio and Wireless Symposium, RWS 2009
Country/TerritoryUnited States
CitySan Diego, CA
Period1/18/081/22/08

Keywords

  • Amplify-and-forward relaying
  • OFDM
  • Pairwise error probability
  • Precoding
  • Relay selection

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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