Inter-carrier Interference(ICI) disrupts the orthogonality between the sub-carriers in the Orthogonal Frequency Division Multiplexing(OFDM) system
greatly debasing the system performance
and in the high-rate mobile Wimax system
ICI caused by time-varying channels is even more not to be overlooked.In this paper
a PTS algorithm-based ICI cancellation technology is introduced into the mobile Wimax system and an optimized algorithm proposed in view of the computational complexity.System simulations in Matlab language prove that this algorithm is effective in the ICI cancellation for Wimax systems.