CHANNEL ESTIMATION AND ICI CANCELLATION FOR OFDM

摘要

An iterative channel estimation and inter-carrier interference (ICI) cancellation process is provided for OFDM receivers, and more particularly for mobile OFDM receivers . The iterative process uses decision feedback to estimate both the channel gain a nd the ICI gains, the latter being the multiplicative gain applied to the adjacent sub- carriers. Thus the receiver performs equalization and ICI cancellation in an iterative fashion and is advantageous for estimating fast fading channels.