Study on ICI self-cancellation algorithm of OFDM systems

OFDM systems are very sensitive to the phase noise,which will cause Common Phase Error as well as Intercarrier Interference.This paper does detailed study on the ICI self-cancellation algorithms for OFDM systems.Performance of two widely-recognized self-cancellation algorithms,data-conversion algorithm and data-conjugate algorithm are analyzed and compared,and an enhanced data-conversion phase noise mitigation algorithm is proposed.Simulation result shows that the proposed algorithm has very low complexity and can eliminate the phase noise effect efficiently.