Modeling and extending lifetime of wireless sensor networks using genetic algorithm

  • Chen J
  • Jia J
  • Wen Y
 et al. 
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To extend the lifetime of the sensor networks as far as possible while maintaining the quality of network coverage is a major concern in the research of coverage control. A systematical analysis on the relationship between the network lifetime and cover sets alternation is given, and by introducing the concept of time weight factor, the network lifetime maximization model is presented. Through the introduction of the solution granularity T, the network lifetime optimization problem is transformed into the maximization of cover sets. A solution based on NSGA-II is proposed. Compared with the previous method, which has the additional requirement that the cover sets being disjoint and results in a large number of unused nodes, our algorithm allows the sensors to participate in multiple cover sets, and thus makes fuller use of the whole sensor nodes to further increase the network lifetime. Simulation results are presented to verify these approaches.

Author-supplied keywords

  • coverage
  • genetic algorithm
  • network lifetime
  • solution granularity
  • wireless sensor network

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  • Jian Chen

  • Jie Jia

  • Yingyou Wen

  • Dazhe Zhao

  • Jiren Liu

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