摘要
在ad hoc网络中,节点通常采用电池一类的可耗尽电源,而且每个节点既是主机又是路由器,很容易因某个节点的电源耗尽而导致网络分裂,节能是一个非常重要的问题。电源感知的路由协议通常追求两个目标:一个是传输数据时选择能量消耗最低的路由,另一个是尽可能最大化网络的生存时间。文中提出了一个改进的ad hoc网络电源感知路由算法。该算法在选择路由时不仅考虑节点的传输能耗和剩余电量,还考虑了节点的移动速度,从而在选择能量消耗最低的路由的同时可以尽可能最大化网络的生存时间,并能够带来较稳定的路由。仿真结果表明,该算法具有较优的性能。
In ad hoe networks, nodes are powered by batteries which are exhaustible, and every node serves as host and router, which will lead to network break up when some node＇s battery is drained. So, power saving is a very important aspect. Usually, battery aware routing protoools pursue two goals： one is to select the route with the lowest transmitting energy cost, another is to maximize the lifespan of network. In this paper, present an enhanced battery aware routing protocol for ad hoe networks. The proposed algorithm can achieve the lowest transmitting energy cost routing, maximize the lifespan of network and bring stable routing by considering not only the node＇s transmission energy cost and power leavings, but also the node＇s moving speed. Simulation study shows that the presented scheme performs better.
出处
《计算机技术与发展》
2009年第8期11-14,共4页
Computer Technology and Development
基金
微软亚洲研究院合作研究项目
陕西省自然科学基金(2005F14)
西安市科技计划项目(YF07010)
