Earticle

초록

영어

Large numbers of nodes are often densely deployed to deliver the desired environmental attributes to the sink in Wireless Sensor Networks (WSNs), so there is a high spatial correlation among the readings of close sensor nodes. Given a certain requirement for accuracy, only part of the sensor nodes should be required to transport the data to sink. We proposed an Energy-aware Iterative Sampling Framework (EISF) for data gathering to reduce the total number of transmissions by exploiting the correlation. In our method, all nodes in a WSNs compete for reporting nodes with energy-related probability and each nonreporting node autonomously determines whether its own readings are redundant or not by utilizing the overheard packets transmitted by the nearby reporting nodes for each epoch. The redundant nodes will be put into sleep mode. After a limited number of iterations, our algorithm can select a set of sampling nodes to transport data with accuracy guarantees. The results of simulation experiments using the real data demonstrate that our proposed approach is effective in prolonging the network life.

목차

Abstract
 1. Introduction
 2. Related work
 3. Our Framework
  3.1. Redundancy determining
  3.2. Energy-aware Iterative Sampling Algorithm
  3.3. Gathering data
 4. Performance Evaluation
  4.1. Simulation Environment
  4.2. Simulation Results
 5. Conclusions & Further Work
 Acknowledgments
 References

키워드

저자

• Jun Wang [ Dept. of Computer & Software, Nanjing University of Information Science & Technology, Network Information Center, Nanjing University of Information Science & Technology ]
• Zhenglu Wang [ Dept. of Computer & Software, Nanjing University of Information Science & Technology ]
• Yong Cheng [ Network Information Center, Nanjing University of Information Science & Technology ]
• Yongsheng Zhu [ Network Information Center, Nanjing University of Information Science & Technology ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Grid and Distributed Computing

• 간기

  격월간

• pISSN

  2005-4262

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605