An improvement of LEACH routing protocol based on trust for wireless sensor networks

  • Authors:
  • Wang Weichao;Du Fei;Xu Qijian

  • Affiliations:
  • 6th department, The PLA Academy of Communication Command, Wuhan, China;6th department, The PLA Academy of Communication Command, Wuhan, China;Research Insititute, CESEC, Beijing, China

  • Venue:
  • WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
  • Year:
  • 2009

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Abstract

LEACH is a hierarchy routing protocol for WSN (wireless sensor networks), which is superior to direct communication protocol, minimum-transmission-energy protocol and static clustering protocol. However, LEACH itself has some defects. In this paper LEACH-TM introduces the concept of Trust, designs the cluster-head adjusting procedure and establishes multi-path with cluster-heads acting as routers. The simulation illustrates that LEACH-TM makes much progress in the reliability of data transmission, the distribution of cluster heads and the lifetime of networks.