Performance of downlink multicarrier CDMA with space diversity

Y. Li, C. N. Georghiades, Garng Morton Huang

Research output: Contribution to conferencePaper

11 Citations (Scopus)

Abstract

We apply a simple transmit diversity technique to down-link multicarrier CDMA (MC-CDMA) systems. The resulting diversity on each subcarrier improves orthogonality among users, which is distorted by the subcarriers' multipath fading. Accordingly, the diversity suppresses multiuser interference. For equal-gain-combining (EGC) receivers, both theoretical analysis and simulation results show that interference is approximately reduced by half compared to MC-CDMA without space diversity. For the orthogonality-restoring combining (ORC) receiver, simulation results show that it suppresses noise amplification while rejecting multiuser interference.

Original languageEnglish
Pages887-889
Number of pages3
Publication statusPublished - 1 Dec 2000
Externally publishedYes

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Global and Planetary Change

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