Performance analysis of joint switched diversity and adaptive modulation

Haewoon Nam, Young-Chai Ko, Mohamed Slim Alouini

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In this paper, a simple and practical system based on a switched diversity scheme with adaptive modulation is presented. This system provides a reduced number of channel estimation while offering the optimum spectral efficiency given by a selection diversity system. In addition, the switching threshold is easily manipulated so as to make an efficient use of the trade-off between spectral efficiency and channel estimation overhead. An extension of switched diversity into a multiuser scheduling is later also considered. This switch-based multiuser access scheme results in a lower average feedback load than that for the optimal selection-based multiuser scheme. Numerical results show that we can obtain a trade-off between spectral efficiency and the feedback load by choosing the switching threshold appropriately.

Original languageEnglish
Article number4657324
Pages (from-to)3780-3790
Number of pages11
JournalIEEE Transactions on Wireless Communications
Volume7
Issue number10
DOIs
Publication statusPublished - 2008 Oct 1

Fingerprint

Adaptive Modulation
Adaptive modulation
Spectral Efficiency
Performance Analysis
Channel Estimation
Channel estimation
Trade-offs
Feedback
Switch
Scheduling
Switches
Numerical Results

Keywords

  • Adaptive modulation
  • Multiuser diversity
  • Switch-based multiuser scheduling
  • Switched diversity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

Cite this

Performance analysis of joint switched diversity and adaptive modulation. / Nam, Haewoon; Ko, Young-Chai; Alouini, Mohamed Slim.

In: IEEE Transactions on Wireless Communications, Vol. 7, No. 10, 4657324, 01.10.2008, p. 3780-3790.

Research output: Contribution to journalArticle

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