电讯技术2017，Vol.57Issue(1)：14-21,8.DOI:10.3969/j.issn.1001-893x.2017.01.003
无线多媒体传感器网络中一种改进路由算法
An Improved Routing Algorithm for Wireless Multimedia Sensor Networks
摘要
Abstract
In the case of high network load, it is difficult for the classic TPGF ( Two-Phase geographic Greedy Forwarding) to find node-disjoint paths from the source node to the destination node,which will lead to the performance degradation in terms of throughput,packet delivery ratio and end-to-end delay. In addition,when the network topology changes little,the nodes passed through by each path of TPGF consume more energy than other nodes, which results in a shorter lifetime and network performance degradation. Therefore,network joint coding technology is introduced into TPGF to propose a Network-coding and Ener-gy aware TPGF( NE-TPGF) routing algorithm. NE-TPGF jointly considers the location of the nodes,the coding opportunities and the residual energy of the nodes to compute routing path. Moreover,it takes ad-vantage of network joint coding technology to further expand network coding structure and make full use of the advantages of network coding to find near-optimal paths. Simulation results show that NE-TPGF can improve the coding opportunity,throughput and packet delivery ratio and reduce the end-to-end delay and energy consumption per bit while balancing energy consumption of nodes.关键词
无线多媒体传感器网络/网络编码/路由算法/能量感知Key words
wireless multimedia sensor network( WMSN)/network coding/routing algorithm/energy aware分类
信息技术与安全科学引用本文复制引用
王柯君,何荣希..无线多媒体传感器网络中一种改进路由算法[J].电讯技术,2017,57(1):14-21,8.基金项目
国家自然科学基金资助项目(61371091) （61371091）
大连海事大学“十三五”重点科研项目(3132016318) （3132016318）
