Analysing and Improving Energy Efficiency of Distributed Slotted Aloha

  • Haidi Yue
  • Henrik Bohnenkamp
  • Malte Kampschulte
  • Joost-Pieter Katoen
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6869)

Abstract

This paper is concerned with the formal modelling and simulative analysis of an energy-efficient MAC protocol for gossip-based wireless sensor networks. This protocol is a variant of classical slotted Aloha in which the number of active TDMA slots is dynamically changed depending on the number of neighbours of a node. We provide a formal model of this protocol, and analyse energy consumption under the signal-to-interference plus noise ratio (SINR) radio model. We propose an amendment of the distributed slotted Aloha protocol by a simple dynamic power assignment scheme, and show that this significantly reduces the energy consumption (30%) and speeds up the message transmission.

Keywords

WSNs Aloha formal modelling SINR simulation energy 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Haidi Yue
    • 1
  • Henrik Bohnenkamp
    • 1
  • Malte Kampschulte
    • 1
  • Joost-Pieter Katoen
    • 1
  1. 1.Software Modeling & Verification Dept. of Computer Science 2RWTH Aachen UniversityAachenGermany

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