Theoretical derivation method of bit error rate in TDMA/TDD transmitter diversity under cochannel interference

Fumiaki Maehara, Fumihito Sasamori, Fumio Takahata

Research output: Contribution to journalLetter

Abstract

Transmitter diversity is a powerful technique to improve the transmission quality of downlink in microcellular mobile communications systems. Under cochannel interference (CCI) at the base station (BS), the transmitter diversity is not necessarily effective, because the desired-plus-interference signal power used as a criterion of downlink branch selection is not always relative to the downlink propagation condition. This paper proposes the theoretical derivation of bit error rate (BER) performance in the transmitter diversity under CCI occurring at BS, as parameters of average SIR at BS, normalized Doppler frequency, and so on. It is confirmed from the correspondence of theoretical results with simulation results that the proposed theoretical approach is applicable to the CCI environments at BS.

Original languageEnglish
Pages (from-to)663-666
Number of pages4
JournalIEICE Transactions on Communications
VolumeE85-B
Issue number3
Publication statusPublished - 2002 Mar

Keywords

  • Bit error rate
  • Cochannel interference
  • Microcellular mobile communications
  • TDMA/TDD transmitter diversity

ASJC Scopus subject areas

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

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