Performance analysis and optimization of switched transmit diversity in MIMO systems

Seyeong Choi, Young-Chai Ko, Edward J. Powers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


We propose a new switched transmit diversity technique in MIMO systems with an application to Alamouti's space time block coding. The proposed scheme is basically a closed loop system where the feedback bits are sent back to the transmitter to indicate the channel quality. Various switching strategies, depending on the size of feedback bits, are considered and optimized to compare the trade-off between the link performance and the number of antennas or feedback information. From our analytical and numerical results, we show that there is a considerable benefit in terms of the performance and practical use.

Original languageEnglish
Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference
Number of pages6
Publication statusPublished - 2004 Dec 1
EventGLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
Duration: 2004 Nov 292004 Dec 3


OtherGLOBECOM'04 - IEEE Global Telecommunications Conference
CountryUnited States
CityDallas, TX



  • Diversity combining
  • Fading channels
  • MIMO
  • Switched diversity systems

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Choi, S., Ko, Y-C., & Powers, E. J. (2004). Performance analysis and optimization of switched transmit diversity in MIMO systems. In GLOBECOM - IEEE Global Telecommunications Conference (Vol. 6, pp. 3705-3710). [WC31-7]