Differential space-Time modulation with eigen-beamforming for correlated MIMO fading channels

Xiaodong Cai, Georgios B. Giannakis

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In this paper, joint differential space-time modulation (DSTM) and eigen-beamforming for correlated multiple-input multiple-output (MIMO) fading channels. While DSTM does not require knowledge of each channel realization, the channel's spatial correlation can be easily estimated without training at the receiver and exploited by the transmitter to enhance the error probability performance. A transmission scheme is developed here that combines beamforming with differential multiantenna modulation based on orthogonal space-time block coding. Error probability is analyzed for both spatially correlated and independent Rayleigh fading channels. Based on the error probability analysis, power loading coefficients are derived to improve performance. The analytical and simulation results presented here corroborate that the proposed scheme can achieve considerable performance gain in correlated channels relative to DSTM without beamforming.

Original languageEnglish
Pages (from-to)1279-1288
Number of pages10
JournalIEEE Transactions on Signal Processing
Volume54
Issue number4
DOIs
StatePublished - Apr 1 2006

Fingerprint

Beamforming
Fading channels
Modulation
Space-time block coding (STBC)
Rayleigh fading
Transmitters
Error probability

Keywords

  • Beamforming
  • Differential optimal transmitter eigen-beamforming and space modulation
  • Error probability analysis
  • Optimal transmitter eigen-beamforming and space block codes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing

Cite this

Differential space-Time modulation with eigen-beamforming for correlated MIMO fading channels. / Cai, Xiaodong; Giannakis, Georgios B.

In: IEEE Transactions on Signal Processing, Vol. 54, No. 4, 01.04.2006, p. 1279-1288.

Research output: Contribution to journalArticle

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