Robust Joint Precoding Design in MIMO Cooperative Systems

摘要

A joint precoding design is proposed for MIMO cooperative systems where channel estimation error exists. Considering the effect of channel estimation error on the performance of systems, the proposed method utilizes MMSE criterion to design precoding at source node and relay node which is robust to channel estimation error. Theory and simulation show that the proposed method reduces the bad effect brought by channel estimation error, and it has much lower complexity.