Duty cycle aware spatial query processing in wireless sensor networks

  • Authors:

  • Rone IlíDio Da Silva;Daniel Fernandes Macedo;José Marcos S. Nogueira

  • Affiliations:

  • DTECH, Federal University of São João del-Rei, Campus Alto Paraopeba, Ouro Branco, MG, Brazil and Computer Science Department, Federal University of Minas Gerais, Belo Horizonte, MG, Bra ...;Computer Science Department, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil;Computer Science Department, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil

  • Venue:
  • Computer Communications
  • Year:
  • 2013

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Abstract

The recent evolution in sensor node location technology has spurred the development of a special type of in-network processing for wireless sensor networks (WSN), called spatial query processing. These queries require data from nodes within a region (called region of interest) defined by the users. The state of the art of spatial query processing considers, in general, that nodes are always on. However, nodes can go to sleep mode (turn off the radio in duty cycles) in order to save energy. This work proposes an energy-efficient in-network spatial query processing mechanism that assumes nodes having no knowledge about their neighbors. The proposed mechanism is able to process spatial queries without the necessity of periodic beacon transmissions for neighbor table updates or for synchronization. Hence, it can work properly over different types of duty cycle algorithms.