无线传感器网络中一种基于GEAR协议的节点调度策略  

GEAR protocol-based node scheduling scheme for wireless sensor networks

作　　者：张立海[1] 蔡茂国[1] 梁荣坚[1] 

机构地区：[1]深圳大学计算机与软件学院,广东深圳518060

出　　处：《传感器与微系统》2010年第3期52-54,58,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(60602066)

摘　　要：基于无线传感器网络地理能量感知路由(GEAR)协议,提出了一种面向查询式路由的节点调度策略GNSS。该策略针对GEAR协议中存在大量空闲节点和冗余节点的能耗问题,根据周期性路由信息,对节点进行角色分类,不同角色的节点执行不同的调度策略。通过节点调度节省了大量能量消耗,同时减少了数据传输量和通信碰撞带来的开销。仿真结果表明:与改进前的GEAR协议相比,该策略使网络生命周期提高了50%以上。A query-style routing-oriented node scheduling scheme, GNSS is proposed for wireless sensor networks, based on geographical energy-aware routing GEAR protocol. To solve energy comsumption problem of a large number of idle nodes and redundant nodes in GEAR protocol, nodes are classified by GNSS according to periodic routing information. Different nodes which play different roles carry out different scheduling schemes. The node schcduling GNSS scheme saves energy consumption, while reduces data transmissions and communication overhead of collisions. The simulation results show that, the GNSS scheme can prolong the network lifetime more than 50 % ,compared to the original GEAR protocol.

关 键 词：无线传感器网络 查询式地理路由 节点调度 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]