基于DSTBC-DF的无线传感网能量有效性研究  

Research on energy efficience of wireless sensor networks based on DSTBC-DF

作　　者：邱云周[1] 严凯[1] 丁盛[1] 朱明华[1] 刘海涛[1] 

机构地区：[1]中国科学院上海微系统与信息技术研究所,上海200050

出　　处：《高技术通讯》2008年第8期790-794,共5页Chinese High Technology Letters

基　　金：863计划(2006AA01Z216)资助项目

摘　　要：提出了一种基于分布式空时分组编码的译码转发(DSTBC-DF)的新的协同分集方案,设计了适合协同分簇多跳无线传感网的网络协议,并讨论了协同同步情况,分析了协同分集方案的性能和协同分簇无线传感网的能量效率。理论分析与 Mento Carlo 仿真的结果验证了这一新方案的有效性:相比传统的方案,不但实现简单,而且通过合理的协议设计有效地解决了协同同步问题,实现了完全的分集增益,有更高的能量效率,网络系统能耗明显降低。The paper proposes a new scheme of cooperative diversity based on distributed space-time block coding decode and forward （DSTBC-DF） for wireless sensor networks, presents＂ its design of a network protocol suitable for wireless sensor networks with cooperative clustering, and analyzes its performance of cooperative synchronization, cooperative diversity, and the energy efficiency of wireless sensor networks with cooperative clustering. Both the theoretical analyses and Mento Carlo simulation show that compared with the existing cooperative diversity methods, the new scheme is more efficient in cooperative synchronization, diversity gain, and energy saving. The study provides the practical results for development and application of wireless sensor networks.

关 键 词：无线传感网 协同分集 DSTBC-DF 能量效率 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.5[自动化与计算机技术—控制科学与工程]