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| A SEMIBLIND MULTIUSER DETECTION ALGORITHM IN MIMO DS/CDMA SYSTEMS |
| Wang Yong; You Xiaohu; Chen Ming; Cheng Shixin |
| Dept. of Radio Eng.,Southeast University Nanjing 210096 |
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Abstract Multiuser Detection (MUD) is a key technique in DS/CDMA systems. Antenna array has also promoted the investigation of Multiple Input Multiple Output(MIMO) system. In this paper a MUD method combined with MIMO considerations is proposed for multiuser interference reduction in antenna array DS/CDMA system. The knowledge that the base station knows many users spreading codes is utilized to form a semiblind MUD algorithm. This algorithm can work under slow fading environment, and simulation proves the superiority of the semiblind algorithm over the conventional blind algorithm.
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Received: 20 September 1999
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2001, Vol. 23 
