Robust transceiver based on worst-case SINR optimization for MIMO interfering broadcast channels with imperfect channel knowledge

In this paper, we propose a robust transceiver design for MIMO interfering broadcast channels taking imperfect channel knowledge at each base station into consideration. By considering the worst-case transceiver design which maximizes the minimum signal-to-interference-plus-noise ratio (SINR), the proposed design can provide better sum rate and worst user rate performance compared to the conventional schemes. From simulation results, we show the resilience of the proposed design against imperfect channel knowledge.