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Opportunistic Aggregation over Duty Cycled Communications in Wireless Sensor Networks

Research output: Contribution in Book/Report/ProceedingsPaper

Published

  • Jonathan Benson
  • Tony O'Donovan
  • Utz Roedig
  • Cormac Sreenan
Publication date04/2008
Host publicationProceedings of the 7th International Conference on Information Processing in Sensor Networks (IPSN '08)
Place of publicationNew York
PublisherACM
Pages307-318
Number of pages12
ISBN (Print)978-0-7695-3157-1
Original languageEnglish

Conference

ConferenceProceedings of the IPSN Track on Sensor Platform, Tools and Design Methods for Networked Embedded Systems (IPSN2008/SPOTS2008), St. Louis, USA
Period1/01/00 → …

Conference

ConferenceProceedings of the IPSN Track on Sensor Platform, Tools and Design Methods for Networked Embedded Systems (IPSN2008/SPOTS2008), St. Louis, USA
Period1/01/00 → …

Abstract

To implement duty cycles with packet based transceivers, a sender transmits a trail of identical packets (which we call framelets) of which the receiver is able to catch one in its active listening phase. This communication concept is used in the standard low power listening (LPL) protocol shipped with TinyOS 2.x. This existing solution has many shortcomings which result in a very limited network performance. In this paper, we firstly present an alternative framelet based low power listening implementation called Framelet Communications (FrameComm) that eliminates these shortcomings. Secondly, we present a novel additional improvement to FrameComm - Interception and Aggregation of Framelet Communications i-FrameComm) - that further improves network performance by opportunistically aggregating packets over the radio channel. A prototype implementation of the proposed FrameComm mechanism in TinyOS 2.02 is used for evaluation and comparison. The experiments show that the interception and aggregation method increases network throughput and lifetime as communication resources are used more efficiently.