DocumentCode :
2474521
Title :
A new fast sub-optimal search method for closed-loop transmit diversity system with limited number of feedback bits
Author :
Ip, S.C. ; Zhang, Z. ; Cheung, S.W. ; Yuk, T.I.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, China
fYear :
2004
fDate :
19-22 Sept. 2004
Firstpage :
387
Lastpage :
390
Abstract :
We present a fast sub-optimal searching algorithm for the closed-loop transmit diversity scheme used in wireless systems. Under the low mobility condition and with perfect channel knowledge at the receiving end, our proposed searching algorithm can use a limited number of feedback bits to provide a sub-optimal solution that can achieve SNR values close to the optimal solution with a greatly reduced complexity and outperform other sub-optimal schemes. The scheme also works well under the presence of feedback errors.
Keywords :
3G mobile communication; channel capacity; closed loop systems; diversity reception; feedback; quality of service; search problems; SNR values; closed-loop transmit diversity; feedback bits; low mobility condition; perfect channel knowledge; sub-optimal search; wireless systems; Antenna feeds; Base stations; Costs; Downlink; Fading; Feedback; Search methods; Transmitting antennas; Wireless communication; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radio and Wireless Conference, 2004 IEEE
Print_ISBN :
0-7803-8451-2
Type :
conf
DOI :
10.1109/RAWCON.2004.1389157
Filename :
1389157
Link To Document :
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