Title :
Comparison of three closed-loop transmit diversity schemes
Author :
Chen, Zhuo ; Vucetic, Branka ; Yuan, Jinhong
Author_Institution :
Sch. of Electr. & Inf. Eng., Sydney Univ., NSW, Australia
Abstract :
In this paper several closed-loop transmit diversity schemes with different levels of feedback about the channel coefficients to the transmitter side are described and compared. These schemes are transmit beamforming with perfect channel state information (CSI) at the transmitter, transmit antenna selection/maximal-ratio combining (TAS/MRC) and the transmit antenna selection/space-time block code (TAS/STBC) schemes with partial CSI available at the transmitter. It is shown that the TAS/MRC scheme provides a good trade-off between feedback complexity and performance.
Keywords :
antenna arrays; block codes; diversity reception; radio receivers; radio transmitters; space-time codes; transmitting antennas; beamforming; channel coefficients; channel state information; closed-loop transmit diversity schemes; feedback complexity; maximal ratio; selection ratio; space-time block codes; transmit antenna selection; transmitter; Array signal processing; Australia; Diversity reception; Feedback; Performance analysis; Rayleigh channels; Receiving antennas; Singular value decomposition; Transmitters; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207644
