4-5 A STUDY ON ICI CANDELLER FOR ISDB-T

Abstract

In OFDM transmission, a loss of sub-carrier orthogonality due to Doppler-spread of the channel leads to inter-carrier interference(ICI), especially, under mobile reception environments. In this paper, we propose the new ICI canceller based on MMSE which does not cause enhancement of noise component. As the result of computer simulation, it is confirmed that the proposed method can improve the bit error rate characteristics under Doppler-spread channel for TSDB-T.