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Performance analysis of integrated space-time receiver with combined full-and reduced-complexity for DS/CDMA systems

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2 Author(s)
V. D. Pham ; Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW, Australia ; T. B. Vu

An integrated space-time receiver is proposed to suppress co-channel interference and increase the capacity for DS/CDMA systems. The receiver employs an array of antennas, which allows it to exploit the spatial domain information in the received signals, and at the same time, each antenna incorporates an adaptive filter with varying complexity and operated in a manner similar to an adaptive equaliser, to further suppress interference in the temporal domain. Numerical results are presented using the minimum mean-squared error (MMSE) criterion, showing that the receiver offers significant performance improvement relative to corresponding time-domain-only counterpart in terms of the near-far resistance and capacity in multipath channels. A comparison of the MSE between simulation results using the RLS algorithm and analytical results using optimum Wiener solution is also presented

Published in:

Military Communications Conference Proceedings, 1999. MILCOM 1999. IEEE  (Volume:1 )

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