作　　者： (郑志蕴）; (郭芳）; (王振飞）; (张行进）; (王飞）;

机构地区： 郑州大学信息工程学院,郑州450001

出　　处： 《计算机科学》 2017年第9期115-119,147,共6页

摘　　要： 为解决无线传感网分簇协议中出现的节点能量消耗不均衡的问题,提出一种新的基于梯度和能量捕获的分布式无线传感网路由协议EGRP。该协议引入了距离梯度和能量捕获技术,在成簇阶段,以节点自身剩余能量、邻居节点平均剩余能量、节点距离梯度为参数构建成簇策略;在转发阶段,以簇头剩余能量和簇头梯度为参数构建簇间转发策略。理论推导与仿真实验结果均表明,EGRP协议的优化效果达到了预期,使单个节点的能耗下降10.9%,不同节点间的能耗更加均衡,从而延长了网络的生命周期。 To solve the problem of unbalanced energy consumption of wireless sensor network nodes, a new distributed routing protocol based on gradient and energy awareness （EGRP） was proposed. EGRP introduces 3 parameters to form clusters.-the residual energy of the node itself, its distance gradient, and the average residual energy of its neighbors. Then according to inner cluster bead＇s residual energy and distance gradient, every outer cluster head chooses one inner as the forward routing to build the routing tree. Theoretical derivation and simulation results show that EGRP can a- chieve ideal optimal effect, and it reduces single node＇s energy consumption by 10. 9%,improves the balance of energy consumption between different nodes, and prolongs network＇s lifetime.

关 键 词： 无线传感网 分簇 距离梯度 能量捕获 路由协议