关键词: 正交频分复用, 多径衰落, 子载波干扰, 载波频率偏移, 载波间干扰消除

Abstract: Based on the OFDM wireless mobile environment, study around the elimination of ICI, although some traditional ICI cancellation algorithm can achieve the elimination of certain effects, there is still a lack of accuracy, lack the necessary mathematical analysis and other shortcomings. This paper, Compared the former ICI self-cancellation algorithm, Improved system model and proposed a new error rate analytical method with frequency offset and a lower inter-carrier interference method in OFDM digital communication systems, which is groups conjugate elimination algorithm. Also analyze the realization of a mathematical method for this algorithm, Simulation results demonstrate this method with other methods of BER performance comparison.

Key words: OFDM, Multipath Fading, Inter-Carrier Interference, Carrier Frequency Offset, ICI Cancellation