Edinburgh Research Explorer

Closed loop space-time block code

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

  • Tao Xiaofeng
  • H Harald
  • Yu Zhuizhuan
  • Qin Haiyan
  • Zhang Ping
  • Harald Haas

Related Edinburgh Organisations

Original languageUndefined/Unknown
Title of host publicationProc. of the 54th IEEE Vehicular Technology Conference (VTC)
Number of pages4
Publication statusPublished - 1 Oct 2001


In 3GPP FDD specifications, space time transmit diversity (STTD) employs space-time block code (STBC) to maintain orthogonality between the two antennas in order to avoid self-interference in fading channels. However, the STTD technique is just open loop transmit diversity, and we investigate whether we can obtain further gain if closed loop STBC is used. A novel scheme based on closed loop STBC is proposed first. And then an optimized allocation scheme of a fixed transmitter power budget between two transmit antennas is presented. Finally, COSSAP simulation results show a significant performance improvement between closed loop STBC and traditional STBC. Moreover, these simulation results also show a good agreement with our theoretical analyses

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