The Research Of Ad Hoc Routing Protocol Based On Energy-aware

Wireless Ad Hoc network is a kind of network which features non-infrastructure, multiple hops, mobility and self-organization. Each node on this network can be used as source or destination node to send and receive data, and also can be used as the router to retransmit the data packet from neighboring nodes. All the nodes are on the equal level with strong anti-destroying ability, so they can quickly construct a mobile communication network at any time and in anywhere. It can not only be applied in the military field, but for disaster recovery, emergency communication and other civil fields. But in a single node, it must rely on portable power supply, which is inconvenient for recharging and replacing. Light-weight terminals in the nodes must be especially considered to optimize the communication function to reduce energy consumption. The failure of some of the key nodes caused by energy depletion will lead to the paralysis of the entire network. This will greatly damage the quality of service. Thus, energy saving control schemes become the hot topic today in Ad Hoc network routing protocol areas.At present, the energy-saving strategies of routing protocols in Ad Hoc networks can be divided into two categories, one is to minimize the total energy consumption,and the other is to maximize network lifetime. Starting from these two targets, this paper presents an energy efficiency improvements protocol(NL-AODV),which is based on AODV protocol, incorporating the network routing hops, the node energy and load factors to select the best route. And in NS2 environment this paper achieves the NL-AODV protocol. The simulation proves that the NL-AODV protocol can improve the efficiency of routing, significantly extend the survival time of the networks, more adapts to the dynamic topology changes of the network.