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为分析跳延时发送参考超宽带系统引入协作机制后的性能,建立了该协作系统的一般模型,利用高斯逼近法推导了跳延时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条件误码率,并利用矩生成函数推导了系统误码率的一般表达式和渐近表达式,理论分析与仿真结果表明系统可获得二阶分集增益,误码率性能也有了明显的提高。
In order to analyze the performance of the reference UWB system after introducing the cooperative mechanism, a general model of the cooperative system is established and the Gaussian approximation method is used to deduce the performance of the UWB system under the conditions of amplification and forwarding and maximum ratio combination The conditional error rate of the system is also derived. The generalized expression and asymptotic expression of the system BER are deduced by using the moment generation function. The theoretical analysis and simulation results show that the system can obtain the second-order diversity gain and the bit error rate performance has also been significantly improved .