A fault-tolerant scheme for an autonomous local wireless sensor network

  • Authors:
  • Hui-Ching Hsieh;Jenq-Shiou Leu;Wei-Kuan Shih

  • Affiliations:
  • Department of Computer Science, National Tsing Hua University, Taiwan, ROC;Department of Electronic Engineering, National Taiwan University of Science and Technology, Taiwan, ROC;Department of Computer Science, National Tsing Hua University, Taiwan, ROC

  • Venue:
  • Computer Standards & Interfaces
  • Year:
  • 2010

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Abstract

Typical wireless sensor network comprises sensors and a sink. The sink gathers and analyzes the data from sensors and then takes the corresponding action. Such architecture may have single-point of failure problem. Besides, when sensors have no direct link with the sink, they must deliver data by hopping scheme. The sink may take a longer time to collect data. Furthermore, faulty sensors and environment interference may cause an incorrect result. To overcome the mentioned problems, we propose a consensus problem based solution to make all sensors reach an agreement without the sink. It can conduct actions more quickly and directly.