无线传感器网络中分布式空时分组码设计  

Design of Distributed Space-time Block Code in Wireless Sensor Network

作　　者：黄育侦[1] 徐友云[1] 程云鹏[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《现代电子技术》2010年第9期55-57,62,共4页Modern Electronics Technique

摘　　要：从无线传感器网络(WSN)节点能耗的节省和传输数据的可靠性出发,研究和设计了基于4个协同节点和能量可补充节点(Sink)形成的分布式虚拟多天线空时分组码;同时考虑到节点的实际工作条件以及对能量的苛刻要求,提出并分析了其改进型算法,即从信道参数及协同节点能量剩余状况考虑重新选取协同节点,进一步提高系统性能。理论分析和仿真结果表明,该分布式空时分组码(D-STBC)在无线传感器网络中的应用是有效和可行的。The space-time block code of distributed virtual multi-antenna based on four cooperative nodes and a power-harvesting node is investigated and designed proceeding with the energy efficiency of the nodes and the reliability of the transmitted data in wireless sensor network（WSN）.Considering the actual environment and the rigorous demand for the energy,the energy of the cooperative nodes,the improved algorithm that reselects dynamic cooperative nodes from the channel parameter and node energy residue condition is proposed and analyzed to improve the system performance.The theory and simulation show that the application of the distributed space-time codes in WSN is effective and feasible.

关 键 词：无线传感器网络 分簇 MIMO 空时分组码 

分 类 号：TN915[电子电信—通信与信息系统]