An Energy Efficient Cluster-based Scheduling Scheme for Environment Information Systems

환경정보 시스템에 적합한 클러스터 기반 에너지 효율적인 스케줄링 기법

  • 안성현 (단국대학교 정보컴퓨터학과) ;
  • 김승훈 (단국대학교 컴퓨터학부 멀티미디어공학전공)
  • Received : 2007.12.27
  • Accepted : 2008.04.02
  • Published : 2008.05.31

Abstract

Sensor node clustering is one of the most popular research topics to reduce the energy of sensor nodes in wireless sensor networks. Previous researches, however, did not consider prediction effects of sensed environment information on TDMA scheduling of a cluster, resulting energy inefficiency. In this paper, we suggest an energy efficient cluster-based scheduling scheme that can be applied flexibly to many environment information systems. This scheme reflects the environment information obtained at the application layer to the MAC layer to set up the schedule of a cluster. The application layer information sets up the scheduling referring to the similarity of sensed data of cluster head. It determines the data transmission considering the result of similarity. We show that our scheme is more efficient than LEACH and LEACH-C in energy, which are popular clustering schemes, through simulation.

Acknowledgement

Supported by : 단국대학교