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ELS: An Efficient Localization Scheme based on GPS for Ubiquitous Sensor Network

ELS: 유비쿼터스 센서 네트워크를 위한 GPS 기반의 효율적인 위치인지 기법

  • 윤재근 (고려대 공대 전자전기공학과) ;
  • 고두현 (고려대 공대 전자전기공학과) ;
  • 김범진 (고려대 공대 전자전기공학과) ;
  • 안순신 (고려대 전자전기공학과)
  • Published : 2010.01.01

Abstract

The problem of location awareness in wireless sensor networks where nodes use GPS (Global Positioning System), remains challenging problem, when considering the required large energy consumption during the localization phase. In this paper we designed hardware for GPS based localization and propose a framework, called ELS, to consume low cost energy. In the ELS framework, sensor nodes are equipped with GPS. Because GPS spends large energy for position awareness, conventional localization algorithms cannot use GPS-device. We try to find a solution for efficient energy expenditure of GPS. Finally, we derive optimal transmission power of GPS data and a scheme of localization through experiment and simulation.

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