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A low complexity turbo adaptive interference cancellation using antenna arrays for W-CDMA

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2 Author(s)
D. Mottier ; Mitsubishi Electr. ITE, Rennes, France ; L. Brunel

This paper investigates an adaptive iterative space-time interference cancellation receiver for wideband code division multiple access (W-CDMA). Each iteration of the interference cancellation includes adaptive beamforming, adaptive path-combining and soft-input soft-output decoding. The complexity of the demodulation process using very simple normalized least mean square (N-LMS) adaptive algorithms is limited with no need of space-time channel estimation. Adaptive space-time processing algorithms are shown to benefit from the iterative process. Simulation results on a UMTS-like scenario show that this receiver achieves performance that is very close to the single user bound, even for highly interfered networks

Published in:

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th  (Volume:3 )

Date of Conference:

2001