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, the...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.展开更多
基金Supported by the National Natural Science Foundation of China (90307017)
文摘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.
