Apparatus and method for canceling interference signal in an orthogonal frequency division multiplexing system using multiple antennas

摘要

A receiving apparatus and method for receiving signals through a plurality of receive antennas in a mobile communication system. In the receiving apparatus, a plurality of FFTs transform frequency-domain symbol sequences received from the receive antennas to time-domain FFT symbol sequences, an SIC receiver decides the value of a higher-priority transmitted symbol sequence using its FFT symbol sequence and decides the value of a lower-priority transmitted symbol sequence using the decided higher-priority transmitted symbol sequence and its error, a plurality of demodulators demodulate the decided transmitted symbol sequences to a plurality of coded bit streams, a plurality of deinterleavers deinterleave the coded bit streams, stream by stream, and a parallel-to-serial converter converts the deinterleaved coded bit streams to one coded bit stream.