移动通信中基于交互差错的协作发射性能研究

未来移动通信系统中相互独立的多个手机通过协作发射可以获得协作分集的好处。同时，发射端信息交互差错会影响协作发射性能。考虑瑞利衰落信道及基于空时分组码的协作发射方案，该文研究了信息交互差错对分集性能的影响。理论分析及仿真结果表明，当信噪比较高时发射端信息交互差错成为影响接收性能的主要因素，发射端协作手机数大于2时，接收端增加接收天线数可在一定程度上提高接收性能极限。

Performance Research of Cooperative Transmit with Information Exchange Error in Mobile Communication System

In future mobile system some independent handsets can obtain the benefits of cooperative diversity by the way of cooperative transmission.At the same time,information exchange error will degrade the performance of cooperative transmission.Considering Rayleigh fading channel and the cooperative transmit scheme based on STBC,the effect of information exchange error on cooperative diversity is researched.Finally,the theory analysis and simulation results show that when the SNR is high information exchange error becomes the main factor that degrades the reception performance,if the number of cooperative handsets is more than two,increasing the number of reception antennas can improve the reception performance boundary in some degree.