通用选择合作分集及其阈值选择改进方案的性能分析  

Analysis of Generalized Selection Cooperative Diversity and Its Improved Scheme with Threshold Selection

作　　者：朱柏承[1] 程卫军[1] 

机构地区：[1]北京大学电子学系,北京100871

出　　处：《电子与信息学报》2007年第2期319-322,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60672105);中国博士后科学基金(2005037284)资助课题

摘　　要：提出了适用于多跳无线网络的通用选择合作分集及其基于阈值选择的改进方案。在瑞利衰落下研究了所提方案再生中继的容量性能,并推导了中断率的闭式解。数值分析和仿真研究表明通用选择合作方案实现了全路由分集增益,而阈值选择合作不仅提供了一个有效的合作节点的选择方案,也实现了系统性能与目的节点的处理代价的良好折中,对降低目的节点接收机的信号处理功耗和复杂度很有好处。This paper proposes a generalized selection cooperative diversity and its improved scheme with threshold selection for multi-hop wireless networks. The regenerative capacity performances for the proposed schemes are analyzed and derived over Rayleigh fading channels. The numerical and simulation results show that generalized selection cooperative diversity can offer the full-route diversity, however, its improved scheme not only provides an efficient selection scheme for cooperation nodes but achieves a good tradeoff between the system performance and the processing cost of the destination, and it is very helpful to reduce the power consumption and the hardware complexity of the destination,

关 键 词：多跳无线网络 合作分集 再生中继 中断率 

分 类 号：TN919.3[电子电信—通信与信息系统]