OFDM 시스템에서 복잡도를 줄인 새로운 주파수 옵셋 추정 방법

Frequency offset in OFDM system is known to cause the ISI and ICI, resulting in a severe performance degradation of the total system. In this paper, we propose at time domain an improved frequency offset estimation method in AWGN channel environment by using Cyclic Prefix. Simulation results show that reduced complexity better than ML-CP Estimation with the algorithm which is proposed by J. J van de Beek.