CDMA系统中一种改进的Rake接收机算法研究

Journal of Applied Sciences ›› 2004, Vol. 22 ›› Issue (3): 298-302.

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An Improved Rake Receiver Algorithm of the CDMA System

ZHAO Jun-hui, WANG Dong-ming, YOU Xiao-hu

National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Received:2003-06-05 Revised:2003-08-27 Online:2004-09-30 Published:2004-09-30

Abstract

Abstract: In order to suppress the multipath interference in the CDMA system, an improved Rake receiver based on parallel multipath interference cancellation technique (PMPIC) is proposed in this paper. The cause of multipath interference and multi-user access interference is first analysed. Next an improved Rake receiver is given a theoretical analysis and its simplification algorithm is also proposed. The PMPIC is studied by Monte Carlo simulation under different channel environments. Theoretical analysis and computer simulations illustrate that the improved Rake receiver can give significant improvement when compared with the conventional Rake receiver.

Key words: CDMA, Rake receiver, parallel multipath interference cancellation

CLC Number:

TN929.533

ZHAO Jun-hui, WANG Dong-ming, YOU Xiao-hu. An Improved Rake Receiver Algorithm of the CDMA System[J]. Journal of Applied Sciences, 2004, 22(3): 298-302.

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An Improved Rake Receiver Algorithm of the CDMA System

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