APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION ROBUST TO CARRIER FREQUENCY OFFSET IN WIRELESS COMMUNICATION SYSTEM

摘要

An apparatus and method for interference cancellation robust to frequency offset in a wireless communication system, which includes a receiver for receiving a modulated transmission signal according to a predetermined modulation scheme upon interference cancellation, estimating a carrier frequency offset based on a preamble and a pilot of a transmission signal, An optimum filter coefficient matching an estimated carrier frequency offset among the optimal filter coefficients calculated for each of a plurality of carrier frequency offsets previously stored is detected and the detected optimal filter coefficient is used for a reception filter to generate a transmission signal corresponding to the modulation scheme And demodulates it by a demodulation method to detect data.