Two-way amplify and forward relaying with adaptive modulation

Kyu Sung Hwang, Young-Chai Ko, Mohamed Slim Alouini

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

2 Citations (Scopus)

Abstract

Cooperative diversity has been recently presented as a new technique to improve the link performance of wireless communication systems. However, a loss in spectral efficiency due to half-duplex relaying can be a significant weak-point for high data rate communications. In this paper, 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. By using the ideal-scaled gain at the relay instead of the more practical power-scaled gain, we provide an approximate but a very accurate performance analysis of our proposed system. Our numerical examples show that the proposed system offers a considerable gain in the spectral efficiency and outage probability while satisfying the error rates requirements.

Original languageEnglish
Title of host publicationProceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
Pages1370-1374
Number of pages5
DOIs
Publication statusPublished - 2009 Nov 30
Event2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany
Duration: 2009 Jun 212009 Jun 24

Other

Other2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
CountryGermany
CityLeipzig
Period09/6/2109/6/24

Keywords

  • Adaptive modulation
  • Amplify-and-forward relaying
  • Half-duplex transmission
  • Two-way relaying

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Software

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  • Cite this

    Hwang, K. S., Ko, Y-C., & Alouini, M. S. (2009). Two-way amplify and forward relaying with adaptive modulation. In Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 (pp. 1370-1374) https://doi.org/10.1145/1582379.1582680