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Department of Estuarine and Ocean Sciences Seminar Announcement

When: Wednesday, March 2, 2016
12:30 PM - 1:30 PM
Where: > See description for location
Description: The School for Marine Science and Technology
Department of Estuarine and Ocean Sciences
Seiminar Announcement

Multi-AUV Autonomy - from refueling strategies to reducing communication latency in mobile underwater acoustic networks


Dr. Ramprasad Balasubramanian
Professor of Computer and Information Science
Associate Dean of the College of Engineering
University of Massachusetts Dartmouth

and

James Delande
PhD student
University of Massachusetts Dartmouth


Wednesday, March 2, 2016
12:30 pm - 1:30 pm
SMAST I, Room 204
706 S. Rodney French Blvd., New Bedford, MA


Abstract:
Multi-vehicle cooperation and coordination requires communication between vehicles to be effective. A great deal of progress has been made in multi-vehicle coordination using traditional wireless networks, among unmanned ground vehicles. In underwater environments, communication is limiting and difficult. In this talk we will present some progress we have made in improving multi-vehicle autonomy via strategies to overcoming the communication challenges.
There are many different Medium Access Control (MAC) protocols that are aimed at improving overall performance of underwater acoustic networks. One such MAC protocol is time division multiple access (TDMA), which assigns network nodes slots that allow each node to communicate during its own time frame. One of the biggest issues with TDMA is the latency that is introduced by assigning time slots. If a node needs to communicate it may have to wait multiple time slots before it is able to transmit. This is especially problematic in mobile networks that are event driven. By making TDMA more flexible and dynamic we hope to overcome some of the latency issues with TDMA. We show one approach to help mitigate latency issues with TDMA in a mobile underwater acoustic network using Mission Oriented Operating Suite (MOOS) as the back-seat driver. Results from several realistic scenarios are presented.



Note: Seminar will be simulcast to SMAST II, Room 325.

You can view the seminar live by clicking
here: "live event" . Please note: the earliest you will be able to log in is
15 minutes before the regularly scheduled time.


To view a video of an SMAST seminar (post-October 1, 2014), go to http://www.umassd.edu/smast/newsandevents/seminarseries/ and click on a highlighted title.


For additional information, please contact Sue Silva at s1silva@umassd.edu.
Contact: > See Description for contact information
Topical Areas: School for Marine Sciences and Technology, SMAST Seminar Series