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The fatal weakness of wireless sensor is the problem of energy consumption. The AODV protocol is based on the minimum number of hops. However, it may not be the optimal routing. Considering from the perspective of remaining energy of nodes, we found this protocol is more likely to result in the death of nodes. In order to solve this problem, we divided the nodes into three stages according to the residual energy of them. Then we improved each phase of the protocol in order to ensure the maximize life of each node, so that the survival time of entire network would be improved obviously.
Date of Conference: 6-8 Nov. 2009