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Energy-level based Routing Algorithm of Multi-sink Sensor Networks

Due to the battery resource constraint, it is a critical issue to save energy in wireless sensor networks, particularly in large sensor networks. One possible solution is to deploy multiple sink nodes simultaneously. In this paper, we engage in routing selection in multiple sink WSN. First, we provide a routing algorithm based on minimum energy consumption (ECR). ECR algorithm will consume least energy. But it will consume the energy of nodes on the key path too quickly. With the introduction of energy-level, we put forward energy-level based routing algorithm (ELR) and priority based routing algorithm (PRA). Experiment results show that the prior has super performance than the traditional routing algorithm; the last can keep the balance of energy consumption in the sensor network which can prolong the lifetime of the network.