Performance analysis of two-way amplify and forward relaying with adaptive modulation over multiple relay network

Kyusung Hwang, Youngchai Ko, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

In this letter, we propose two-way amplify-and-forward relaying in conjunction with adaptive modulation in order to improve spectral efficiency of relayed communication systems while monitoring the required error performance. We also consider a multiple relay network where only the best relay node is utilized so that the diversity order increases while maintaining a low complexity of implementation as the number of relays increases. Based on the best relay selection criterion, we offer an upper bound on the signal-to-noise ratio to keep the performance analysis tractable. Our numerical examples show that the proposed system offers a considerable gain in spectral efficiency while satisfying the error rate requirements. © 2011 IEEE.
Original languageEnglish (US)
Pages (from-to)402-406
Number of pages5
JournalIEEE Transactions on Communications
Volume59
Issue number2
DOIs
StatePublished - Feb 2011

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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