Combining beamforming with alamouti scheme for multiuser MIMO communications

Chen Sun, Nemai C. Karmakar, Khoon Seong Lim, Aigang Feng

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

16 Citations (Scopus)


We combine optimum receive beamforming with the Alamouti space-time block code (STBC) transmission and modify the decoding process. In a multiuser multiple-input multiple-output (MIMO) communications scenario, the beamformer suppresses co-channel interference by maximizing the uplink signal-to-noise-plus-interference-ratio (SINR). It is shown that the beamforming process increases the bit-error-rate (BER) performance and maximizes the available uplink channel capacity for each user in the presence of co-channel interference (CCI). The ergodic capacity of a conventional 2-by-l Alamouti scheme is also increased from 3.2 to 4 bits/s/Hz by adding one receive antenna.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Number of pages5
Publication statusPublished - 1 Dec 2004
Externally publishedYes
EventIEEE Vehicular Technology Conference 2004 (Fall) - Los Angeles, United States of America
Duration: 26 Sept 200429 Sept 2004
Conference number: 60th (Proceedings)

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


ConferenceIEEE Vehicular Technology Conference 2004 (Fall)
Abbreviated titleVTC Fall 2004
Country/TerritoryUnited States of America
CityLos Angeles
Internet address


  • Alamouti space-time block code (stbc)
  • Beamforming
  • Multiple-input multiple-output (mimo)
  • Wishart distribution

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