Low energy operation in WSNs: A survey of preamble sampling MAC protocols

  • Authors:

  • C. Cano;B. Bellalta;A. Sfairopoulou;M. Oliver

  • Affiliations:

  • NeTS Research Group, Department of Information and Communication Technologies, Universitat Pompeu Fabra, C/Tínger 122-140, 08018 Barcelona, Spain;NeTS Research Group, Department of Information and Communication Technologies, Universitat Pompeu Fabra, C/Tínger 122-140, 08018 Barcelona, Spain;NeTS Research Group, Department of Information and Communication Technologies, Universitat Pompeu Fabra, C/Tínger 122-140, 08018 Barcelona, Spain;NeTS Research Group, Department of Information and Communication Technologies, Universitat Pompeu Fabra, C/Tínger 122-140, 08018 Barcelona, Spain

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2011

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Abstract

The limited energy resources of sensor nodes are among the most important constraints in Wireless Sensor Networks (WSNs). Consequently, the Medium Access Control (MAC) layer design is crucial, due to its influence on the transceiver, which is the most energy-consuming component of a sensor node. Among the different MAC protocols designed for WSNs, preamble sampling techniques provide extremely low energy consumption at low loads and have a notably simple operation and a lack of synchronisation requirements, which are characteristics that are especially appealing to WSNs. In this work, a survey of the different types of MAC protocols designed for WSNs is presented with a special focus on preamble sampling MAC protocols. The aim of this work is to give a detailed overview and classification of the most relevant preamble sampling MAC protocols, being motivated by the extremely large number of MAC protocols designed for WSNs in recent years. Moreover, a simple set of guidelines for matching the most suitable MAC protocol category to a given application is provided in this work.