Effects of post and early selection on SEC based transmit diversity systems with linear power loading

Mazen O. Hasna, Hong Chuan Yang, Mohamed Slim Alouini

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

1 Scopus citations

Abstract

Switch and examine combing (SEC) diversity scheme provides a lowest-complexity closed-loop transmit diversity solution. Furthermore, by probing sequentially available branches with different power loading levels, the SEC based transmit diversity systems can offer considerable amount of transmit power savings [1]. In this paper we propose two variants for the SEC with power loading schemes proposed earlier, namely: post and early selection schemes, and we analytically evaluate their performance and complexity. It is shown that early selection scheme has the advantage of lower average transmit power by selecting the best branch with the minimal power required, and the least number of channel probes. Post selection scheme on the other hand has less average feedback load at the expense of slightly higher average transmit power.

Original languageEnglish (US)
Title of host publicationIWCMC 2008 - International Wireless Communications and Mobile Computing Conference
Pages225-229
Number of pages5
DOIs
StatePublished - 2008
Externally publishedYes
EventInternational Wireless Communications and Mobile Computing Conference, IWCMC 2008 - Crete, Greece
Duration: Aug 6 2008Aug 8 2008

Other

OtherInternational Wireless Communications and Mobile Computing Conference, IWCMC 2008
CountryGreece
CityCrete
Period08/6/0808/8/08

Keywords

  • Diversity techniques
  • Power loading
  • Selection combining and performance analysis
  • Switched combining

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software
  • Electrical and Electronic Engineering

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