Channel capacity analysis on cooperative MIMO with antenna spatial correlation and multi-path

Recent years, cooperative technology has taken a lot of attention since it can improve the bit error rate (BER) and lower the transmit power in radio mobile networks, especially when the direct channel between the source and the destination is poor. Cooperative multiple input multiple output (Co-MIMO) is a kind of MIMO technique, where the multiple inputs and outputs are formed via cooperation. The capacity of Co-MIMO system over wireless channel has been investigated a lot, however few papers pay attention to the effect of antenna spatial correlation and the number of Multi-path to the capacity of MIMO channel. This paper focuses on this problem. Simulation results show that cooperation between different terminals can reduce antenna spatial correlation, thereby increase the capacity and throughput of the system, and even reach the ideal capacity of MIMO system. Meanwhile, the number of multi-path Rayleigh fading does not affect the channel capacity.