Residual Energy Considerations for AODV Enhancement

One of the main challenges in MANET is link breaks between the routes due to exhausted energy of nodes which have limited battery power. Every time a node transmits, receives or listens to a communication medium, it consumes energy. This paper focuses on creating an energy efficient method and a new technique was introduced to avoid link breaks before occurrence using preemptive local repair. The proposed technique measures residual energy of the node using two thresholds to determine the mode which the node uses to operate through, and hence provides prior information of link failure before its occurrence. Our proposed method is evaluated according to pause time and number of nodes in network. The results showed that our method improved the performance of AODV as the number of delivered packets is increased, the number of broken links is decreased and the total energy of the network is increased.