Rayleigh channel estimation based on particle filter with simulated annealing algorithm |
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Authors: | Weibing Wang Qiuping Zhu Xinyi Xu |
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Institution: | (1) School of Electronic Information, Wuhan University, Wuhan, 430072, Hubei, China |
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Abstract: | 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.
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Keywords: | simulated annealing particle filter Rayleigh channel channel estimation |
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