Finite-SNR diversity-multiplexing tradeoff for OFDM channels

Bo Bai, Wei Chen, Khaled Ben Letaief, Zhigang Cao

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

7 Citations (Scopus)

Abstract

The diversity-multiplexing tradeoff, which relates the transmission reliability and efficiency, is an important performance metric in wireless communications. So far only an asymptotic tradeoff result has been obtained for OFDM channels, and such result is only valid for high SNRs. To characterize the outage performance of OFDM systems in realistic SNRs, a finite-SNR framework that analyzes and describes the diversity-multiplexing tradeoff will be proposed in this paper. New upper and lower bounds on outage probabilities will be derived by using the method of integral round a contour, Laurent series, and the properties of Meijer's G-function and Gamma function. The finite-SNR diversity gain, as a function of the multiplexing gain and SNR, will also be computed by Meijer's G-function. We will then show that the finite-SNR diversity- multiplexing tradeoff will converge to the corresponding asymptotic results as SNR tends to infinity. As a result, the finite-SNR diversity-multiplexing tradeoff can be used to estimate the additional SNR required to decrease the outage probability by a specified amount for a given multiplexing gain.

Original languageEnglish
Title of host publication2010 IEEE International Conference on Communications, ICC 2010
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781424464043, 9781424464043
DOIs
Publication statusPublished - 1 Jan 2010
Event2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa
Duration: 23 May 201027 May 2010

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Other

Other2010 IEEE International Conference on Communications, ICC 2010
CountrySouth Africa
CityCape Town
Period23/5/1027/5/10

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Bai, B., Chen, W., Letaief, K. B., & Cao, Z. (2010). Finite-SNR diversity-multiplexing tradeoff for OFDM channels. In 2010 IEEE International Conference on Communications, ICC 2010 [5502827] (IEEE International Conference on Communications). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2010.5502827