Diversity combining with discrete power loading over fading channels

Fadel F. Digham*, Mohamed Slim Alouini

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

This paper studies a system with diversity reception combining and adaptive discrete power of transmission based on an idea presented by Hayes in [1] wherein he showed that feedback information improves the performance significantly in a Rayleigh multipath medium. We first have an alternative look at the system considered in [1] by providing slightly modified and compact results. We then consider the practical implementation of this system by proposing an optimum discrete power loading scheme. The problem in its discrete fashion is to minimize the average bit error rate for a given total energy constraint resulting in an optimum discrete power loading as a function of channel status. This discrete scheme also makes the system more robust against imperfect and/or outdated channel estimates and does not need to feedback the instantaneous channel status but instead the index of the adaptation region.

Original languageEnglish (US)
Title of host publication2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages328-332
Number of pages5
Volume1
ISBN (Print)0780383443
StatePublished - 2004
Externally publishedYes
Event2004 IEEE Wireless Communications and Networking Conference, WCNC 2004 - Atlanta, GA, United States
Duration: Mar 21 2004Mar 25 2004

Other

Other2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
CountryUnited States
CityAtlanta, GA
Period03/21/0403/25/04

ASJC Scopus subject areas

  • Engineering(all)

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