Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Wake-up Algorithm of Wireless Sensor Node Using Geometric Probability

기하학적 확률을 이용한 무선 센서 노드의 웨이크 업 알고리즘 기법

  • Choi, Sung-Yeol (Div. of Electronics, Information and Communications, Samcheock Campus, Kangwon National University) ;
  • Kim, Sang-Choon (Div. of Electronics, Information and Communications, Samcheock Campus, Kangwon National University) ;
  • Kim, Seong Kun (School of General Studies, Samcheock Campus, Kangwon National University) ;
  • Lee, Je-Hoon (Div. of Electronics, Information and Communications, Samcheock Campus, Kangwon National University)
  • 최성열 (강원대학교 삼척캠퍼스 전자 정보통신공학부) ;
  • 김상춘 (강원대학교 삼척캠퍼스 전자 정보통신공학부) ;
  • 김성근 (강원대학교 삼척캠퍼스 교양과정) ;
  • 이제훈 (강원대학교 삼척캠퍼스 전자 정보통신공학부)
  • Received : 2013.07.01
  • Accepted : 2013.07.09
  • Published : 2013.07.31
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Abstract

Efficient energy management becomes a critical design issue for complex WSN (Wireless Sensor Network). Most of complex WSN employ the sleep mode to reduce the energy dissipation. However, it should cause the reduction of sensing coverage. This paper presents new wake-up algorithm for reducing energy consumption in complex WSN. The proposed wake-up algorithm is devised using geometric probability. It determined which node will be waked-up among the nodes having overlapped sensing coverage. The only one sensor node will be waked-up and it is ready to sense the event occurred uniformly. The simulation results show that the lifetime is increased by 15% and the sensing coverage is increased by 20% compared to the other scheduling methods. Consequently, the proposed wake-up algorithm can eliminate the power dissipation in the overlapped sensing coverage. Thus, it can be applicable for the various WSN suffering from the limited power supply.

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References

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