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为分析码正交发送参考超宽带的协作性能,建立了码正交发送参考超宽带协作模型.给出非协作下高斯Q函数形式的误码率公式.以三节点协作模型为基础,采用高斯逼近的分析方法,推导出码正交发送参考超宽带系统在放大转发、最大比合并协作方式下的误码率一般表达式,并对理论结果进行了数值分析.仿真结果表明,协作下的码正交发送参考超宽带系统获得了多阶分集增益.分析讨论了时间带宽积、脉冲个数及瞬时信噪比对误码率性能的影响.
In order to analyze the cooperation performance of reference UWB with Orthogonal Orthogonal Code (UWB) transmission, a code orthogonal transmission UWB model is established, and the error rate formula of non-cooperative Gaussian Q function is given.Based on the three-node cooperative model, Gaussian The general expression of bit error rate (BER) under the condition of amplification, forwarding and maximal ratio combination is deduced, and the theoretical results are analyzed numerically.The simulation results show that the code under the cooperation Multi-stage diversity gain is obtained by orthogonal transmission of reference UWB system.The influence of time-bandwidth product, pulse number and instantaneous signal-to-noise ratio on BER performance is analyzed and discussed.