Joint resource management in multi-antenna cognitive radio networks

This paper designs signal processing algorithms at transmitter and receiver ends jointly in multi-antenna cognitive radio networks.Accordingly the cognitive system could coexist with the primary in one occupied authorized frequency channel without interfering with the primary.Based on the algorithms we devise a spatio-temporal resource model,and then propose a joint resource management method.Simulation results show that compared with non-coexistent method,the proposed scheme could effectively improve the performance of the cognitive system on the premise that cognitive transmission imposes no interference on the primary.