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Delay and Energy Efficient Data Aggregation in Wireless Sensor Networks

  • Le, Huu Nghia (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Choe, Junseong (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Shon, Minhan (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Choo, Hyunseung (School of Information and Communication Engineering, Sungkyunkwan University)
  • Published : 2012.04.26

Abstract

Data aggregation is a fundamental problem in wireless sensor networks which attracts great attention in recent years. Delay and energy efficiencies are two crucial issues of designing a data aggregation scheme. In this paper, we propose a distributed, energy efficient algorithm for collecting data from all sensor nodes with the minimum latency called Delay-aware Power-efficient Data Aggregation algorithm (DPDA). The DPDA algorithm minimizes the latency in data collection process by building a time efficient data aggregation network structure. It also saves sensor energy by decreasing node transmission distances. Energy is also well-balanced between sensors to achieve acceptable network lifetime. From intensive experiments, the DPDA scheme could significantly decrease the data collection latency and obtain reasonable network lifetime compared with other approaches.

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