Transceiver Design with Channel Mismatch for the MIMO Interference Network

Design of robust transceiver for data rate improvement in interference channel (IC), under imperfect channel state information (CSI), is an important research area. This paper, employs an iterative optimization approach to design algorithm for throughput enhancement in a multi-input multi-output (MIMO) IC. Nodes in the MIMO IC, work in a time division duplex mode, where half of them are equipped with 𝑴 antennas while the others have 𝑵 antennas. In the proposed scheme, each transceiver adjusts its associated filter based on the maximization of the signal-to-interference-plus-noise ratio (SINR). In the time division duplex working mode, the problem utilizes reciprocity of the wireless network. Monte Carlo simulations are employed to investigate improvement in sum rate performance of the proposed algorithm and sum rate degradation due to channel mismatch.