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

Kyu Sung Hwang, Young Chai Ko, Mohamed Slim Alouini

Research output: Contribution to journalArticle

32 Citations (Scopus)

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.

Original languageEnglish
Article number5648746
Pages (from-to)402-406
Number of pages5
JournalIEEE Transactions on Communications
Volume59
Issue number2
DOIs
Publication statusPublished - 2011 Feb

Keywords

  • Two-way relaying
  • amplify-and-forward relaying
  • best relay selection and adaptive modulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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