Self-organizing Desynchronization and TDMA on Wireless Sensor Networks

  • Authors:

  • Julius Degesys;Ian Rose;Ankit Patel;Radhika Nagpal

  • Affiliations:

  • Harvard University, Cambridge, USA MA 02138;Harvard University, Cambridge, USA MA 02138;Harvard University, Cambridge, USA MA 02138;Harvard University, Cambridge, USA MA 02138

  • Venue:
  • Bio-Inspired Computing and Communication
  • Year:
  • 2008

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Abstract

Desynchronization is a recently introduced primitive for sensor networks: it implies that nodes perfectly interleave periodic events to occur in a round-robin schedule. This primitive can be used to evenly distribute sampling burden in a group of nodes, schedule sleep cycles, or organize a collision-free TDMA schedule for transmitting wireless messages. Here we present a summary of Desync , a biologically-inspired self-maintaining algorithm for desynchronization in a single-hop network. We also describe Desync -TDMA, a self-adjusting TDMA protocol that addresses two weaknesses of traditional TDMA: it does not require a global clock and it automatically adjusts to the number of participating nodes, so that bandwidth is always fully utilized.