Space-time cyclic delay transmit diversity for a multi-code DS-CDMA signal with frequency-domain equalization

Ryoko Kawauchi, Kazuaki Takeda, Fumiyuki Adachi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Frequency-domain equalization (FDE) can take advantage of the frequency-selectivity of the channel to improve the transmission performance in a frequency selective fading channel. To further improve the transmission performance, the transmit diversity technique can be used. Cyclic delay transmit diversity (CDTD) can strengthen the frequency-selectivity while space-time transmit diversity (STTD) can achieve the antenna diversity gain. In this paper, we propose a 4-antenna space-time cyclic delay transmit diversity (STCDTD), which is a combination of 2-antenna STTD and 2-antenna CDTD schemes, for orthogonal multi-code direct sequence code division multiple access (DS-CDMA) using FDE. We evaluate the BER performance and the throughput performance by computer simulation and compare them with the original CDTD and STTD schemes.

Original languageEnglish
Pages (from-to)591-596
Number of pages6
JournalIEICE Transactions on Communications
VolumeE90-B
Issue number3
DOIs
Publication statusPublished - 2007 Mar

Keywords

  • Cyclic Delay Transmit Diversity (CDTD)
  • Frequency-domain equalization
  • Multi-code DS-CDMA
  • Space-Time Transmit Diversity (STTD)

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Space-time cyclic delay transmit diversity for a multi-code DS-CDMA signal with frequency-domain equalization'. Together they form a unique fingerprint.

  • Cite this