Methods to reduction of inter carrier interference (ICI) in OFDM: A Review

Sukhjit singh


Orthogonal Frequency division multiplexing(OFDM) is promising technique for broadband wireless communication system. Intercarrier interference (ICI) occurs in OFDM which must be removed. There are various methods to reduce ICI in OFDM . In this paper we will discuss these various methods like maximum likelihood Estimation(MLE), self cancellation (SC),Extended Kalman filtering (EKF) ,Time domain window ,frequency domains window techniques, and channel estimation techniques .
Keywords—Orthogonal frequency divison multiplexing (OFDM) Inter carrier interference(ICI); self cancellation (SC);Extended Kalman filtering (EKF) ;The least-square (LS) and minimum-mean-square-error (MMSE); Discrete furrier Transform( DFT)

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