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This paper presents a deployment policy of multiple sink nodes and a heuristic algorithm in wireless sensor networks where the sink nodes can be disposed. The policy disposes the sink nodes through working out the optimal positions offline. And then, a case study on deployment of multiple sink nodes with the policy we present and the heuristic algorithm was implemented. The simulation result indicates...
The main design challenges of the wireless sensor network is to obtain long system lifetime, as well as maintain sufficient sensing coverage and reliability. In this paper, a novel node-scheduling algorithm based on grade field model is presented. The grade transition algorithm in different grade field is depicted and analyzed. This algorithm can decrease network traffic and avoid additional cooperative...
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