Balance The Energy Consumption Of Aodv Routing

Mobile Ad Hoc Networks (MANET) is derived from the needs of the military communications originally, and is a multi-hop temporary autonomous system of many mobile nodes equipped with wireless transceivers. It usually uses wireless communications, and it doesn't have fixed base stations as well as be good in resisting destructions, and it is applicable to many environments that have difficulties in wiring networks primarily, such as temporary meeting, battlefield and other special occasions. Mobile Ad Hoc networks adopts to multi-hop routing, dynamic network topology, distributed control, independent networking, and so on, these special advantages make it not only playing an important role in the military field, but also having good application prospects in civilian areas. The Ad Hoc networks have dynamic network topology structure. The routing protocols are applied to the traditional communication network, which cannot normally work on these environments. Therefore, designing to routing protocols for mobile Ad Hoc networks is an important research issues. AODV routing protocols are designed to mobile Ad Hoc networks, is one of the typical on-demand routing protocols, and it probably occupies to an important position in the future mobile Ad Hoc network application.Based on detailed introducing the MANET characteristics, deeply analyzing AODV routing protocol and introducing the existing related researches about AODV routing protocol. This paper proposed an improvement to AODV routing protocol about limited energy of the node.P_AODV routing protocol research on how to make full use of the node limited energy, which is based on AODV routing protocol. This paper proposed algorithm is added the parameter of judging the remaining energy state for each node. If some node is detected having less remaining energy in the primary route during data packets transmitting along the primary route, it needs to create a bypass from its previous, and the load of the network which will be forwarded or is forwarding by this node is distributed to the primary route and bypass route, in order to improve the network performance and prolong the lifetime of the entire network. Analyzing the simulation results which obtained by Network Simulation (NS-2) shows that the improved AODV routing protocol performs effectively in terms of successfully data packet delivery ratio, average end-to-end delay, routing spending, and network lifetime.This paper uses NS-2 simulator building a platform for simulation working in Red hat Enterprise Linux 4.0, the feasibility of P_AODV routing protocol is validated in the same simulation environment by comparing the network performance of AODV routing protocol and P_AODV routing protocol.