A Scalable Correlation Aware Aggregation Strategy for Wireless Sensor Networks

  • Authors:
  • Yujie Zhu;Ramanuja Vedantham;Seung-Jong Park;Raghupathy Sivakumar

  • Affiliations:
  • Georgia Institute of Technology;Georgia Institute of Technology;Georgia Institute of Technology;Georgia Institute of Technology

  • Venue:
  • WICON '05 Proceedings of the First International Conference on Wireless Internet
  • Year:
  • 2005

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Abstract

Sensors-to-sink data in wireless sensor networks (WSNs) are typicallycorrelated with each other. Exploiting such correlation when performingdata aggregation can result in considerable improvements in thebandwidth and energy performance of WSNs. In order to exploitsuch correlation, we present a scalable and distributed correlation-awareaggregation structure that addresses the practical challenges in thecontext of aggregation in WSNs. Through simulations and analysis,we evaluate the performance of the proposed approach with centralizedand distributed correlation aware and unaware structures.