RISIC scheme based on transform-domain processing channel estimation

In order to solve the problem of declining performance caused by intersymhol interference and the interchannel interferencein orthogonal frequency division multiplexing systems,a new method, residual elimination algorithm based on transform-domain processing channel estimation, was used in analysis and experimental dada processing. The scientific and accurate data were obtained. The simulation results with MATLAB show that in a broadband wireless localareahet, when the cyclic prefix length is insufficient to protect the algorithm, the performance of the orthogonal frequency division multiplexing system is significantly improved after finite iterations, and the difficult in the calculation is reduced.The result is helpful for the study of optical communication technology.