Abstract

The optimal energy saving routing algorithm proposed in this paper is based on the shortest path tree. This algorithm introduces the concept of node classification and builds the weight function based on link energy consumption factor, neighbor node’s residual energy factor and type weight and so on. It uses different weight factor according to different types of nodes, and finally generates the shortest path tree, all nodes send data to sink node along the shortest path tree. The simulation results show that the algorithm can prolong the network life time, balance energy consumption of each node, and reduce the average network delay.

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