Underwater Communications

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The interdisciplinary understanding required for the design and analysis of underwater acoustic communication presents formidable constraints and challenges for computer scientists and engineers. Understanding underwater communications requires knowledge about multi-path propagation via hydrophones, and using acoustic waves instead of electromagnetism. Underwater communication is difficult due to factors such as time variations of the channel, small available bandwidth and strong signal attenuation, especially over long ranges. In this website, we report our ongoing research on underwater wireless communications. A variety of ideas and solutions that could be of value for further research is reported. Publications and demonstrations in terms of topology control, directional underwater transducers, monitoring and surveillance applications.

Source Code & Publications

  1. A.-M. Ahmad, J. Kassem. M. Barbeau, J. Garcia-Alfaro. "The Implementation of GNU Radio Blocks for Decoding Long-lasting Frames in Mobile Underwater Acoustic Communications". GNU Radio Conference 2018. Henderson, Nevada, USA, September, 2018
    Full Paper.
  2. A.-M. Ahmad, J. Kassem. M. Barbeau, J. Garcia-Alfaro. "GNU Radio Blocks for Long-lasting Frames in Mobile Underwater Acoustic Communications". French GNU Radio days 2018. Lyon, France, July, 2018  
    Full Ref.Paper
  3. A.-M. Ahmad, J. Kassem. M. Barbeau, E. Kranakis, S. Porretta, J. Garcia-Alfaro. "Doppler Effect in the Acoustic Ultra Low Frequency Band for Wireless Underwater Networks". Mobile Networks and Applications. Springer-Nature, pp. 1-11, 2018
    Full Ref.
  4. S. Porretta, M. Barbeau, J. Garcia-Alfaro, E. Kranakis. "Learning to Communicate Underwater (An exploration of Limited Mobility Agents in Underwater Acoustic Sensor Networks)", 12th ACM International Conference on Underwater Networks & Systems, WUWNet'17, Nov 6-8, 2017, Halifax.    
    Web Ref.SourceCodePaper
  5. M. Barbeau. "Weak Signal Underwater Communications in the Ultra Low Frequency Band in GNU Radio", Proceedings of the 7th GNU Radio Conference, 2(1):1-8, September 2017.  
    SourceCodePaper
  6. A-M. Ahmad, M. Barbeau, J. Garcia-Alfaro, J. Kassem, E. Kranakis, S. Porretta. "Doppler Effect in the Underwater Acoustic Ultra Low Frequency Band", 9th EAI International Conference on Ad Hoc Networks, Niagara Falls, Canada, September 28-29, 2017.  
    Full Ref. SourceCode Paper
  7. M. Barbeau, J. Garcia-Alfaro, E. Kranakis, S. Porretta. "The Sound of Communication in Underwater Acoustic Sensor Networks", 9th EAI International Conference on Ad Hoc Networks, Niagara Falls, Canada, September 28-29, 2017.
    Full Ref.  Paper
  8. M. Barbeau, S. Blouin, G. Cervera, J. Garcia-Alfaro, E. Kranakis. "Location-free Link State Routing for Underwater Acoustic Sensor Networks". 28th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE 2015), May 3-5, 2015, Halifax, NS, Canada.      
    Conf. Ref. Full Ref. PaperSourceCodeVideo demo
  9. M. Barbeau, S. Blouin, G. Cervera, J. Garcia-Alfaro, B. Hasannezhad, E. Kranakis. "Simulation of underwater communications with a colored noise approximation and mobility". 28th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE 2015), May 3-5, 2015, Halifax, NS, Canada.    
    Conf. Ref. Full Ref. PaperAppendix