一种跳延时发送参考超宽带通信系统的协作方法  

A Cooperative Method for Delay-hopped Transmitted-Reference Ultra-Wideband Communication System

作　　者：李铁峰[1] 李鸥[1] 周泽文[1] 

机构地区：[1]解放军信息工程大学,河南郑州450002

出　　处：《通信技术》2013年第11期60-63,共4页Communications Technology

摘　　要：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 delay-hopped transmitted-reference UWB cooperative communication system, a transmitted-reference UWB cooperative communication model is presented. By using Gaussian approximation method, the conditions BER is derived for the delay-hopped transmitted- reference UWB cooperative communication system under amplify-and- forward, maximum-ratio combining cooperation. Meanwhile by using the moment-generating function, the closed-form SER formulation and the tight SER approximation are explicitly obtained. Simulation results show that the system could achieve fairly good SER performance and second-order diversified gain.

关 键 词：协作通信跳延时发送参考超宽带放大转发矩生成函数 

分 类 号：TN911[电子电信—通信与信息系统]