Mobile Radio Communications
Performance of channel estimation methods for OFDM systems in a multipath fading channels
IEEE Transactions on Consumer Electronics
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Maximum-likelihood based channel estimation is considered for orthogonal frequency division multiplexing systems in dispersive time-varying channels. A successive overrelaxation approach is adopted to analyze the convergence rate of an iterative channel estimation algorithm. Based on the analysis, an improved fast converging iterative channel estimation algorithm is proposed. Numerical tests are performed to show the improvement of the proposed algorithm over a recently proposed channel estimation algorithm.