一种基于新的能量消耗模型的路由协议
首发时间:2008-05-10
摘要:移动Ad Hoc网络是由一组无线移动主机组成的一个没有任何建立好的基础设施或集中管理设备的临时网络。网络拓扑易变、带宽、能源有限是移动Ad Hoc网络的主要特点。本文在介绍了一种新的能量消耗模型的基础上,提出了一种路由算法,由于该算法是一个NP难题,因此给出了一个近似算法,并在经典的路由协议AODV进行了实现与仿真实验。实验结果表明新的协议EA_AODV在总能量消耗和网络生存时间方面表现出了很好的性能。
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A new routing protocol based on an energy consumption model
Abstract:Mobile ad hoc networks are collections of wireless mobile nodes, constructed dynamically without the use of any existing network infrastructure or centralized administration.Due to the limited transmission range of wireless network interfaces, multiple hops may needed for one node to exchange data with anther one across the network.Mobile ad hoc networks are characterized by limited power resource, high mobility and limited bandwidth.The paper introduces a new energy consumption model. We propose a routing algorithm based on the model. Because the algorithm is NP hard problem , so we modify it and draw a approximation algorithm .At last , we simulate the algorithm(EA_AODV) by using AODV protocol and compare the performance of two protocols.The simulation results show EA_AODV protocol provides better performance in terms of energy consumption and network life time.
Keywords: energy consumption model;EA_AODV;approximation algorithm;NP-hard problem
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