Scheduling Nodes in Wireless Sensor Networks: A Voronoi Approach

  • Authors:
  • Marcos Augusto M. Vieira;Luiz Filipe M. Vieira;Linnyer B. Ruiz;Antonio A. F. Loureiro;Antonio O. Fernandes;José Marcos S. Nogueira

  • Affiliations:
  • -;-;-;-;-;-

  • Venue:
  • LCN '03 Proceedings of the 28th Annual IEEE International Conference on Local Computer Networks
  • Year:
  • 2003

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Abstract

A wireless sensor network is a special kind of ad-hoc networkwith distributed sensing and processing capability thatcan be used in a wide range of applications, such as environmentalmonitoring, industrial applications and precisionagriculture. Despite their potential applications, suchnetworks have particular features imposed by resource restrictions,such as low computational power, reduced bandwidthand specially limited power source. In case of a networkwith a high density of sensor nodes, some problemsmay arise such as the intersection of sensing area, redundantdata, communication interference, and energy waste.A management application is necessary to make the most ofnetwork resources. On the other hand, a high-density networkcan introduce a fault-tolerant mechanism, increaseprecision, and provide multi-resolution data. The networkdensity control depends on the application. In this paper, wepropose a method to set up which nodes should be turned offor on. The management may take the sensor node out of servicetemporally. Our design uses a Voronoi Diagram, whichdecomposes the space into regions around each node. Thatschema could be used in a management architecture for awireless sensor network.