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Space-time-multipath coding using digital phase sweeping or circular delay diversity

Research output: Contribution to journalArticlepeer-review

Abstract

We design novel space-time multipath (STM) coded multi-antenna transmissions over frequency-selective Rayleigh fading channels. We develop STM coded systems that guarantee the maximum possible space-multipath diversity, along with large coding gains, and high bandwidth efficiency for any number of transmit-receive antennas. By incorporating subchannel grouping, we also enable desirable tradeoffs between performance and complexity. Our designs rely on digital phase sweeping or block circular delay operations and apply to both single- and multi-carrier systems. Their merits are confirmed by corroborating simulations and comparisons with existing approaches.

Original languageEnglish (US)
Pages (from-to)1121-1131
Number of pages11
JournalIEEE Transactions on Signal Processing
Volume53
Issue number3
DOIs
StatePublished - Mar 2005

Bibliographical note

Funding Information:
Manuscript received September 25, 2003; revised March 5, 2004. This work was supported by the Communications and Networks Consortium sponsored by the U. S. Army Research Laboratory under the Collaborative Technology Alliance Program, Cooperative Agreement DAAD19-01-2-0011. The U. S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation thereon. This paper was presented in part at the GLOBECOM Conference, Taipei, Taiwan, R.O.C., November 17–21, 2002. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Zhi Ding.

Keywords

  • Coding
  • Diversity
  • Frequency-selective fading
  • Multi-carrier transmission
  • Phase sweeping

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