期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2013
卷号：1
期号：2
出版社：S&S Publications
摘要：Present Internet has been developed approximately for past forty five years. Nowadays many networkresearchers are involved in wireless communications. Wireless networks allow hosts and routers to roam without theconstraints of wired connections. Therefore, the network topology can be dynamic and unpredictable. Traditionalrouting protocols used for wired networks cannot be directly applied to most wireless networks because some commonassumptions are not valid in dynamic networks. This is because in mobile Adhoc networks, mobile devices wanderautonomously from the originating place to other place. In this research paper we have taken one familiar routingalgorithm called Adhoc On-demand Distance Vector routing algorithm (AODV). Mobile Adhoc networks areemployed in critical environment like military battle fields and rescue operations in the forest. In such environmentPower constrains are considering to be serious since there is no power supply to charge the battery of mobile device. Soit is very important to reduce the power consumption of the mobile node. AODV provides Route Reply (RREP) alongthe path through it receives Route Request (RREQ). Sudden change of topology causes that the Route Reply could notarrive to the source node, i.e. after a source node sends several route request messages; the node obtains a replymessage which leads to loss of battery power. This increases the power consumption and communication delay alsodecreases the packet delivery ratio. The power consumption and other problems can be eliminated through amodification in AODV technique. This modified AODV is called reverse AODV (RAODV), The second mechanismproposes a new adaptive approach which seeks to incorporate the metric "residual energy " in the process of routeselection, Indeed the residual energy of mobile nodes were considered when making routing decisions. The secondmethod of AODV is referred as Energy Reverse AODV (ERAODV) which incorporate RAODV. The NS2 simulationresult shows that the battery power consumption is reduced.
关键词：AODV; RAODV; ERAODV; RREQ; RREP; NS2; Power consumption; Power Constrains
