Node control methods to reduce power consumption using push-based broadcast for mobile sensor networks

  • Authors:

  • Takefumi Ogawa;Tatsuya Shinjo;Shinya Kitajima;Takahiro Hara;Shojiro Nishio

  • Affiliations:

  • Information Technology Center, The University of Tokyo, Japan;Hitachi Management Partner, Corp., Japan;Dept. of Multimedia Eng., Graduate School of Information Science and Technology, Osaka University;Dept. of Multimedia Eng., Graduate School of Information Science and Technology, Osaka University;-

  • Venue:
  • Journal of Mobile Multimedia
  • Year:
  • 2010

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Abstract

Recently, a lot of researchers have directed their attention to mobile sensor networks that are constructedby sensor nodes with a moving facility. Mobile sensor networks enable to construct a wide-range sensingsystem by the cooperative behaviours of a small number of mobile sensors. However, because radiocommunication range of the nodes does not cover the whole sensing area, every node has to move closer tothe sink to deliver its sensor readings. Thus, the power consumption to deliver the sensed data to the sinkbecomes large. We previously proposed two mobile sensor control methods to reduce the powerconsumption by employing push-based broadcast, named the MST (Moving-distance-based StaticTopology) and the SR-N (Shortest Route with Negotiation) methods for sparse mobile sensor networks. Inthis paper, we propose the MST/NFD (MST with Node Failure Detection) and the SR-N/NFD (SR-N withNode Failure Detection) methods as extensions of the MST and the SR-N methods to detect node failures.We also conducted simulation experiments to evaluate the performance of our methods and confirmed thatthe MST/NFD method is more robust over node failures than the SR-N/NFD method, and that the SRN/NFD method can achieve the high throughput than the MST/NFD method.