Decentralized time-synchronized channel swapping

George Smart, Nikos Deligiannis, João F. C. Mota, Yiannis Andreopoulos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


We are working on a new concept for decentralized medium access control (MAC), termed decentralized time-synchronized channel swapping (DT-SCS). Under the proposed DT-SCS and its associated MAC-layer protocol, wireless nodes converge to synchronous beacon packet transmissions across all IEEE802.15.4 channels, with balanced numbers of nodes in each channel. This is achieved by reactive listening mechanisms, based on pulse coupled oscillator techniques. Once convergence to the multichannel time-synchronized state is achieved, peer-to-peer channel swapping can then take place via swap requests and acknowledgments made by concurrent transmitters in neighboring channels. Our implementation of DT-SCS reveals that our proposal comprises an excellent candidate for completely decentralized MAC-layer coordination in WSNs by providing for quick convergence to steady state, high bandwidth utilization, high connectivity and robustness to interference and hidden nodes. The demo will showcase the properties of DT-SCS and will also present its behaviour under various scenarios for hidden nodes and interference, both experimentally and with the help of visualization of simulation results.

Original languageEnglish
Title of host publicationProceedings of the 14th International Conference on Information Processing in Sensor Networks
PublisherAssociation for Computing Machinery
Number of pages2
ISBN (Electronic)9781450334754
Publication statusPublished - 13 Apr 2015
Event14th International Symposium on Information Processing in Sensor Networks 2015 - Seattle, United States
Duration: 13 Apr 201516 Apr 2015


Conference14th International Symposium on Information Processing in Sensor Networks 2015
Abbreviated titleIPSN 2015
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Computer Networks and Communications


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