Wireless sensor nodes are usually powered by batteries and then work for a long time after deployment, which means that the energy of nodes could become a bottleneck of network operation. To solve the problem of energy limitation of nodes in wireless sensor network, this paper proposes an energy saving routing algorithm based on whole network dormancy. The algorithm can turn all nodes, including terminal nodes, routing nodes and sink nodes, to sleep, saving energy for each node in the network. At the same time, it designs two sleep strategies, named long sleep and short sleep strategy, for routing nodes. The two strategies can further reduce consumption under the premise of not affecting energy consumption. The experimental results based on CC2630 show that: compared with exiting related algorithm, the new algorithm reduces consumption of nodes by 10%.
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