Space-time/frequency coding for MIMO-OFDM in next generation broadband wireless systems

Wei Zhang, Xiang Gen Xia, Khaled Letaief

Research output: Contribution to journalArticle

118 Citations (Scopus)

Abstract

With the advent of next generation (4G) broadband wireless communications, the combination of multiple-input multiple-output (MIMO) wireless technology with orthogonal frequency division multiplexing (OFDM) has been recognized as one of the most promising techniques to support high data rate and high performance. In particular, coding over the space, time, and frequency domains provided by MIMO-OFDM will enable a much more reliable and robust transmission over the harsh wireless environment. In this article we provide an overview of space-time (ST) coding, space-frequency (SF) coding, and space-time-frequency (STF) coding for MIMO-OFDM systems. Performance results show that STF coding can achieve the maximum diversity gain in an end-to-end MIMO-OFDM system over broadband wireless channels. Furthermore, for orthogonal frequency division multiple access (OFDMA), we propose a multiuser SF coding scheme that can achieve the maximum diversity for each user while minimizing the interference introduced from all the other users.

Original languageEnglish
Pages (from-to)32-43
Number of pages12
JournalIEEE Wireless Communications
Volume14
Issue number3
DOIs
Publication statusPublished - Jun 2007
Externally publishedYes

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ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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