Research on the Intelligent Signal Channel Sensing Based ICI Elimination Algorithm of the OFDM System

摘要

This paper investigated the channel estimation based inter-carrier interference (ICI) cancellation algorithm elimination of the orthogonal frequency division multiplexing (OFDM) system. Compared to the traditional technologies, this new algorithm would be processed as part of ICI as noise, and to reduce the effects of interference between the carrier frequency offset by simultaneous judgment and impulse channel frequency response (CFR). At the same time, the algorithm considered the CFR estimate of the frequency-offset effect, the closest to the actual frequency offset value, thereby reducing the ICI. To simplify the calculation, the frequency-offset hypothesis was determined utilizing a binary search method, and matrix interference was simplified. Simulation results demonstrated the effectiveness and superiority of the algorithm.