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Adaptive minimum bit error rate multitarget array algorithm

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2 Author(s)
Yunhui Liu ; Dept. of Electron. Eng., Shangai Jiao Tong Univ., Shanghai, China ; Yuhang Yang

The paper proposed a modified least squares despread respread multitarget constant modulus algorithm (LS-DRMTCMA). The cost function of the original algorithm was modified by the minimum bit error rate (MBER) criterion. The novel algorithm tries to optimize weight vectors by directly minimizing bit error rate (BER) of code division multiple access (CDMA) mobile communication system. In order to achieve adaptive update of weight vectors, a stochastic gradient adaptive algorithm was developed by a kernel density estimator of possibility density function based on samples. Simulation results show that the modified algorithm provides remarkable improvements in the BER performance, capacity and near far effect resistance of a given CDMA communication system.

Published in:

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on  (Volume:2 )

Date of Conference:

31 May-2 June 2004

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