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      https://www.ias.ac.in/article/fulltext/sadh/045/0162

    • Keywords

       

      Underwater wireless sensor networks; residual energy; node load; network lifetime; fault tolerance.

    • Abstract

       

      Recently, underwater wireless sensor networks were proposed to explore underwater environment for scientific, commercial and military purposes. However, the limited energy of nodes is a challenge for underwater wireless sensor networks. To prolong the lifetime of battery-limited underwater wireless sensor networks, in this paper, a fault-tolerant topology that can effectively extend the network lifetime is proposed. Initially, the influence of node residual energy and load on node lifetime is analysed. Later the lifetime model ofunderwater wireless sensor networks is established, and the value range of node load adjustment coefficient satisfying network lifetime is obtained. Finally, the scale-free fault-tolerant evolution model with network lifetime optimization is built based on node residual energy and load case. In addition, simulation experiments are performed to validate performances of the new topology generated by the evolution model built. The results show that the new topology structure can balance the energy consumption of the nodes and prolong the network lifetime effectively, and has good fault tolerance

    • Author Affiliations

       

      MINGRU DONG1 1 HAIBIN LI1 1 YAQIAN LI1 1 YUJING DENG2 RONGRONG YIN2

      1. Engineering Research Center of the Ministry of Education for Intelligent Control System and Intelligent Equipment, Yanshan University, Qinhuangdao 066004, China
      2. School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
    • Dates

       
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