RLS自适应滤波的迭代信道估计与符号检测算法

Journal of Applied Sciences ›› 2006, Vol. 24 ›› Issue (3): 221-226.

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An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on RLS Adaptive Filter

ZHANG Peng, BI Guang-guo, CAO Xiu-ying, XIAO Hai-yong, JIN Xiu-feng

National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China

Received:2004-12-11 Revised:2005-03-03 Online:2006-05-31 Published:2006-05-31

Abstract

Abstract: Taking into account channel characteristics of high-speed mobile communication and using an RLS adaptive filter capable of tracking time variations of input statistics under non-stationary conditions, the paper presents an iterative joint channel-estimation and symbol-detection algorithm based on RLS adaptive predictor.Calculating initial channel values of each iterative estimation recursively, successive iteration times are reduced and convergence values become more accurate.Simulation results show that it improves convergence and system performance dramatically compared to conventional algorithms.

Key words: channel estimation, RLS adaptive filter, prediction, iteration

CLC Number:

TN911.23

ZHANG Peng, BI Guang-guo, CAO Xiu-ying, XIAO Hai-yong, JIN Xiu-feng. An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on RLS Adaptive Filter[J]. Journal of Applied Sciences, 2006, 24(3): 221-226.

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An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on RLS Adaptive Filter

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