Rayleigh Channel Estimation Based on Particle Filter with Simulated Annealing Algorithm  

作　　者：WANG Weibing ZHU Qiuping XU Xinyi 

机构地区：[1]School of Electronic Information, Wuhan University, Wuhan 430072, Hubei, China

出　　处：《Wuhan University Journal of Natural Sciences》2009年第2期153-157,共5页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China (90307017)

摘　　要：In this paper, a particle filter （PF） with simulated annealing algorithm is proposed to estimate and track Rayleigh channel state information （CSI） using decision directed scheme. By iteratively cooling in PF, there are two superiorities in our proposed algorithm. First, there is no degeneration problem in this method. Second, the proposed algorithm converges globally. The proposed algorithm has been implemented in a system on Rayleigh channel with BPSK modulation. Also, the consistency and sensitivity of the algorithm has been tested and the simulation results show that the proposed algorithm is good enough to be applied to wireless communication practice. The relationships between channel estimation and measurement noise, SNR and Doppler frequency have been shown by simulations.In this paper, a particle filter （PF） with simulated annealing algorithm is proposed to estimate and track Rayleigh channel state information （CSI） using decision directed scheme. By iteratively cooling in PF, there are two superiorities in our proposed algorithm. First, there is no degeneration problem in this method. Second, the proposed algorithm converges globally. The proposed algorithm has been implemented in a system on Rayleigh channel with BPSK modulation. Also, the consistency and sensitivity of the algorithm has been tested and the simulation results show that the proposed algorithm is good enough to be applied to wireless communication practice. The relationships between channel estimation and measurement noise, SNR and Doppler frequency have been shown by simulations.

关 键 词：simulated annealing particle filter Rayleigh channel channel estimation 

分 类 号：TN929.533[电子电信—通信与信息系统] O224[电子电信—信息与通信工程]