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Stochastic approximation and data re-use applied to blind adaptive algorithm for interference cancellation RAKE CDMA receiver

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3 Author(s)
Zhu, S. ; Dept. of Electr. & Electron. Eng., Imperial Coll., London, UK ; Arasaratnam, P. ; Constantinides, A.G.

This paper addresses the problem of stochastic approximation and data re-use applied to the blind adaptive algorithm for the interference cancellation RAKE CDMA receiver. The improved adaptive algorithm that utilizes step-size adaptation can achieve both faster convergence and higher steady state performance compared to the fixed step-size ones without increasing much more complexity. Moreover, the improved adaptive algorithm that further utilizes solution averaging and data re-use can further improve both convergence speed and steady state performance. Simulations support the resulting significant improvements.

Published in:

Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on  (Volume:2 )

Date of Conference:

2002