APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION IN BROADBAND WIRELESS ACCESS SYSTEM

摘要

An apparatus and a method for canceling interference in a broadband wireless access system are provided to remove interference by an adjacent cell in an uplink to reduce the operating point of the uplink, thereby transmitting uplink data with low power and saving the power of a terminal. A method for canceling interference comprises the following steps of: configuring a receiving vector(Y), the channel matrix(HD) of desired signals, and the channel matrix of interference signals(301); arranging the channel matrix of interference signals in the order of a channel size(303); connecting the HD and the arranged channel matrix of the interference signals to reconfigure the entire channel matrix(HAIC)(305); operating the metric of a k-numbered interference channel in the reconfigured HAIC(307); operating an interference removing a filter coefficient(W) based on ZF(Zero Forcing) if the metric is greater than or equal to a reference value(311); and removing interference(313).