Cross layer adaptation of check intervals in low power listening MAC protocols for lifetime improvement in Wireless Sensor Networks

Soledad Escolar, Stefano Chessa, Jesús Carretero, Maria Cristina Marinescu

Research output: Indexed journal article Articlepeer-review

8 Citations (Scopus)

Abstract

Preamble 0073ampling-based MAC protocols designed for Wireless Sensor Networks (WSN) are aimed at prolonging the lifetime of the nodes by scheduling their times of activity. This scheduling exploits node synchronization to find the right trade-off between energy consumption and delay. In this paper we consider the problem of node synchronization in preamble sampling protocols. We propose Cross Layer Adaptation of Check intervals (CLAC), a novel protocol intended to reduce the energy consumption of the nodes without significantly increasing the delay. Our protocol modifies the scheduling of the nodes based on estimating the delay experienced by a packet that travels along a multi-hop path. CLAC uses routing and MAC layer information to compute a delay that matches the packet arrival time. We have implemented CLAC on top of well-known routing and MAC protocols for WSN, and we have evaluated our implementation using the Avrora simulator. The simulation results confirm that CLAC improves the network lifetime at no additional packet loss and without affecting the end-to-end delay.

Original languageEnglish
Pages (from-to)10511-10535
Number of pages25
JournalSensors (Switzerland)
Volume12
Issue number8
DOIs
Publication statusPublished - Aug 2012
Externally publishedYes

Keywords

  • Adaptive scheduling
  • Communication latency
  • Preamble sampling protocols
  • Synchronization
  • Wireless sensor networks

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