Abstract / Description of output
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
Original language | Undefined/Unknown |
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Title of host publication | Proc. of the 54th IEEE Vehicular Technology Conference (VTC) |
Pages | 1093-1096 |
Number of pages | 4 |
Volume | 2 |
DOIs | |
Publication status | Published - 1 Oct 2001 |