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A sink moving scheme based on local residual energy of nodes in wireless sensor networks

  • Chang-geng Tan (谭长庚)
  • Ke Xu (许 可)
  • Jian-xin Wang (王建新)Email author
  • Song-qiao Chen (陈松乔)
Article

Abstract

In the application of periodic data-gathering in sensor networks, sensor nodes located near the sink have to forward the data received from all other nodes to the sink, which depletes their energy very quickly. A moving scheme for the sink based on local residual energy was proposed. In the scheme, the sink periodically moves to a new location with the highest stay-value defined by the average residual energy and the number of neighbors. The scheme can balance energy consumption and prevent nodes around sink from draining their energy very quickly in the networks. The simulation results show that the scheme can prolong the network lifetime by 26%–65% compared with the earlier schemes where the sink is static or moves randomly.

Key words

wireless sensor network network lifetime moving scheme residual energy 

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Copyright information

© Central South University Press and Springer-Verlag GmbH 2009

Authors and Affiliations

  • Chang-geng Tan (谭长庚)
    • 1
  • Ke Xu (许 可)
    • 1
  • Jian-xin Wang (王建新)
    • 1
    Email author
  • Song-qiao Chen (陈松乔)
    • 1
  1. 1.School of Information Science and EngineeringCentral South UniversityChangshaChina

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