无线传感器网络中改进的HeeD路由协议  

Advanced HeeD routing protocol for wireless sensor network

作　　者：李晶[1] 史杏荣[1] 

机构地区：[1]中国科学技术大学信息处理中心,合肥230027

出　　处：《计算机工程与应用》2007年第25期165-167,共3页Computer Engineering and Applications

摘　　要：在无线传感器网络的路由技术中,基于簇的路由算法在拓扑管理、能耗利用、数据融合等方面都有较强的优势。在分析HeeD协议的基础上,提出了HeeD算法存在的问题,并相应地修改了成簇算法,增强了算法的健壮性。同时通过反应式的广播各节点的通信代价,而不是周期性的在每轮初始化阶段广播,大大降低了节点间广播通信代价的次数,节省了网络的整体能耗。仿真结果也证明了改进后的A-HeeD协议相对于HeeD提高了网络的生命周期。As for routing technology in wireless sensor network ,cluster-based routing protocols excel in network topology management,energy minimization,data aggregation and so on.We have proposed an advanced HeeD protocol（A-HeeD）,which can modify some fault in HeeD clustering algorithm and improve its robustness.In A-HeeD,instead of broadcasting communication cost each round,each node broadcast its cost reactively only when it found its cost change,which largely reduces times of broadcasting and network energy dissipation.Simulation have proved A-HeeD protocol could prolong network lifetime compared to HeeD.

关 键 词：无线传感器网络 成簇 网络生命期 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]