两跳OSTBC传输的通信性能分析  

Performance analysis of two-hop OSTBC transmissions

作　　者：李光平[1,2] 冯久超[2] 

机构地区：[1]广东工业大学信息工程学院,广东广州510006 [2]华南理工大学电子与信息学院,广东广州510641

出　　处：《燕山大学学报》2011年第4期351-354,365,共5页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(60872123);国家-广东省自然科学基金联合基金资助项目(U0835001);广东省自然科学基金资助项目(10451009001004407)

摘　　要：考虑信源有多根天线、中继和终端均只有单根天线的两跳中继转发系统。为了获得空间分集,信源利用了正交空时分组编码的发射策略。为了尽可能简化中继配置的复杂度,中继采用固定增益放大转发的协议。导出了瑞利衰落下系统中断概率和误码率的封闭表达式,并通过计算机仿真和数值结果的比较,验证了理论导出表达式的精确性。A two-hop relaying system in which the source are equipped with multiple antennas,while the relay and destination only have a single antenna is considered.OSTBC strategy is employed at the source to achieve space diversity.To make the complexity of the relay lower,fixed gain amplify-to-forward protocol is used.The closed-form expression for outage probability and average SER are derived in Rayleigh fading environment.Finally,Monte Carlo simulations are compared to numerical results to validate the theoretical expressions.

关 键 词：中继转发系统 空间分集 正交空时分组编码 固定增益放大转发 

分 类 号：TG333.17[金属学及工艺—金属压力加工]