標題: | A beamspace-time blind RAKE receiver for sectored CDMA systems |
作者: | Lee, TS Tsai, TC Chen, CH 電信工程研究所 友訊交大聯合研發中心 Institute of Communications Engineering D Link NCTU Joint Res Ctr |
關鍵字: | CDMA;RAKE receiver;array beamforming;interference cancellation |
公開日期: | 1-四月-2001 |
摘要: | A beamspace-time (BT) RAKE receiver is proposed for multiple access interference (MAT) suppression and multipath diversity reception in sectored wireless CDMA communications. The scheme involves three stages. First, a set of adaptive beamformers encompassing a prescribed angular sector is constructed on an antenna array, each providing effective suppression of out-of-sector MAI and reception of in-sector signal. Second, a set of adaptive correlators is attached to each beam to combat in-sector MAI. Finally, the beamspace correlator output data are combined to capture the signal multipaths coherently. The above three-stage operation is performed in a blind mode in that no training signal is needed. The only information required is the signature, timing and a rough estimate of the angle of arrival (AOA) of the desired signal. |
URI: | http://dx.doi.org/10.1023/A:1008969622024 http://hdl.handle.net/11536/29755 |
ISSN: | 0929-6212 |
DOI: | 10.1023/A:1008969622024 |
期刊: | WIRELESS PERSONAL COMMUNICATIONS |
Volume: | 17 |
Issue: | 1 |
起始頁: | 65 |
結束頁: | 83 |
顯示於類別: | 會議論文 |