基于停车诱导系统的能量均衡可靠路由协议的设计

无线传感器网络中节点的能量是有限的,如何设计一个能有效节能的路由协议是其研究的热点之一.针对实际的停车位诱导系统提出了一种能量均衡的可靠路由协议.该协议在网络的初始阶段先建立全局网络拓扑,然后根据能量代价函数选择下一跳转发的节点,节点上方有障碍物的时候更新节点的可靠度信息.由于综合考虑了节点的剩余能量、跳数、邻居节点的距离以及可靠度等因素,使得网络节点能量的消耗得以均衡,达到延长网络生命周期的目的.在仿真平台对能量均衡的可靠路由协议进行了仿真分析,并且和最短路径路由进行了对比,从网络生命周期、网络能量均值以及网络能量方差三个方面分别分析,验证了本协议的优越性.最后将协议应用到实际的停车位诱导系统中,取得了较显著的效果.

Design of an Energy Balance Reliable Routing Protocol Based on Parking Guidance System

Due to the limitation of node energy,the design of routing protocol which can effectively save energy and prolong the lifetime of network has become a hot-spot in WSN research. The paper proposed a reliable energy-bal-anced routing protocol after analyzing readily available protocols. The protocol establishes a global network topology in the initial stage,and then selects the next hop node according to energy cost function and updates node's reliabil-ity information when there are obstacles above the node. With the consideration of the nodes'residual energy,hops, the distance of the neighbors and reliability factors,our protocol balanced the energy consumption of the nodes and effectively prolonged the lifetime of the network. We simulated the reliable energy-balanced routing protocol on the platform and compared it with the Shortest-path routing algorithm in the aspects of lifetime,the average energy con-sumption and the energy variance of the network,which turns out that the algorithm,is superior to others. At last it is applied to the actual parking guidance system,the significant results were obtained.