Abstract
For node scheduling problem in Wireless Sensor Network(WSN) with heterogeneous sensing radius,a new distributed node scheduling scheme based on combinatorial assignment code model was proposed,in which the very possible biggest group number was decided first,and then nodes were divided into clusters in a distributed way based on the concept of two-hop cluster,finally,the nodes in each cluster were scheduled into different groups based on combinatorial assignment code model.The theoretical analysis and experimental results show that the proposed algorithm can prolong the network lifecycle better than the existing methods,such as random-based and two-hop cluster based methods.Therefore,it is more suitable for the environment of WSN with heterogeneous sensing radius.
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