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

12 Citations (Scopus)

Abstract

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
Pages1415-1419
Number of pages5
Volume60
Edition2
Publication statusPublished - 1 Dec 2004
Externally publishedYes
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States of America
Duration: 26 Sep 200429 Sep 2004

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

Conference2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security
CountryUnited States of America
CityLos Angeles, CA
Period26/09/0429/09/04

Keywords

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

Cite this

Sun, C., Karmakar, N. C., Lim, K. S., & Feng, A. (2004). Combining beamforming with alamouti scheme for multiuser MIMO communications. In IEEE Vehicular Technology Conference (2 ed., Vol. 60, pp. 1415-1419). (IEEE Vehicular Technology Conference).