Title :
An efficient downlink beamforming scheme in FDD-CDMA system
Author :
Sun, Xu ; Wang, Huazhi
Author_Institution :
PCS R&D, Motorola China Electron. Ltd. Corp., Beijing, China
Abstract :
Downlink beamforming schemes using MUSIC algorithm have flaws of low speed, less user number than that of antenna array elements. In this paper we combine adaptive antenna with RAKE receiver of FDD-CDMA system effectively and adopt spatial spectrum estimation algorithm to perform downlink beamforming. Simulation shows that compared with MUSIC schemes, this scheme achieves a great increase in speed, user number and accuracy.
Keywords :
adaptive antenna arrays; array signal processing; code division multiple access; direction-of-arrival estimation; frequency division multiplexing; spectral analysis; FDD-CDMA system; RAKE receiver; accuracy; adaptive antenna; downlink beamforming scheme; spatial spectrum estimation algorithm; speed; user number; Adaptive algorithm; Adaptive arrays; Array signal processing; Direction of arrival estimation; Downlink; Fading; Multiaccess communication; Multipath channels; Multiple signal classification; Receiving antennas;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187797
