Adaptive mobile checkpointing facility for wireless sensor networks

  • Authors:
  • Sangho Yi;Junyoung Heo;Yookun Cho;Jiman Hong

  • Affiliations:
  • System Software Research Laboratory, School of Computer Science and Engineering, Seoul National University, Seoul, Korea;System Software Research Laboratory, School of Computer Science and Engineering, Seoul National University, Seoul, Korea;System Software Research Laboratory, School of Computer Science and Engineering, Seoul National University, Seoul, Korea;School of Computer Science and Engineering, Kwangwoon University, Seoul, Korea

  • Venue:
  • ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part II
  • Year:
  • 2006

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Abstract

In wireless sensor networks, many kinds of failures may arise on sensor nodes because the nodes can be deployed and used even in harsh environments. Therefore, fault-tolerance mechanisms are needed for the wireless sensor networks have to maintain stability and normal operation of the networks. In this paper, we propose an adaptive mobile checkpointing mechanism for wireless sensor networks that gives fault-tolerance for the networks. It is a yet another checkpointing mechanism based on the diskless checkpointing which does not use stable storage but uses the redundant memory space of neighboring nodes. Our experimental results show that the lifetime and stability of sensor networks was dramatically increased compared with the case when the proposed mechanism was used or not.