The Linear Prediction Method of Fading Channel Estimation for the RakeReceiver with Impulsive Interference

Authors:
Qiang Shen;Bo-Xiu Wu;Ahmed K. Elhakeem
Affiliations:
Nortel, P.O. Box 3511, Station C, Ottawa, Canada, K1Y 4H7, E-mail: qshen@nortel.ca;Radio Engineering Department, Southeast University, Nanjing,;Electrical and Computer Engineering Department, Concordia University, Montreal, Canada, H3G 1M8
Venue:
Wireless Personal Communications: An International Journal
Year:
1998

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Abstract

Parameter estimation of the multipath and fading channel is investigated for the Rake combiner used in a CDMA system with coherent demodulation. A linear predictor is proposed to obtain a better estimation. Since the industrial interference environment is generally impulsive, a parallel LMS adaptive algorithm is proposed to reduce the impact of impulsive noise on predictor weights adjustment. Performance analysis and computer simulations are presented.