Abstract:

To eliminate cochannel interference, multiple antennas are generally used at receiver to provide spatial multiplexing. Because the traditional methods for receiver need precise channel state information (CSI), a new interference cancellation method based on independent component analysis (ICA) is proposed. The desired signal is extracted according to the received signals and a few known information of communication protocol, hence the CSI is not necessary. Simulations show that the proposed method is approximate to the best linear receiver in terms of signaltointerferenceandnoiseratio (SINR), the difference is less than 01dB.