Cooperative Transmission with Partial Channel Information in Multi-User MISO Wireless Systems

In this paper, we consider novel cooperative transmission from multiple base stations in multi-user wireless systems. The proposed scheme generates multiple beams using partial channel state information, enabling to achieve both beamforming and spatial multiplexing gain. With the use of two- phase multi-user scheduling, it can also achieve multi-user diversity gain. The performance of the proposed scheme is analyzed and verified by computer simulation. Simulation results show the proposed scheme is quite effective as the spatial correlation and/or the number of users increase.