TY - GEN
T1 - Multi-modal communications in underwater sensor networks using depth adjustment
AU - O'Rourke, Michael
AU - Basha, Elizabeth
AU - Detweiler, Carrick
PY - 2012
Y1 - 2012
N2 - Acoustic communication typically dominates the power usage in underwater sensor networks. As networks underwater have very limited recharging capabilities, this challenges the network's ability to communicate collected data. To balance these conflicting needs, we utilize a sensor network platform with underwater acoustic communication, surface level radio communication, and a depth adjustment system to switch between them. Nodes determine if they should surface to communicate by approximating the network energy usage and data latency given the data transmission size. For a given path, we develop and examine a set of algorithms to select the nodes to rise to communicate the data via radio across the network while taking energy usage into account. We perform a preliminary analysis of the methods and show that for typical networks greedy approaches are nearly as good as centralized approaches, yet require minimal communication overhead and only local information.
AB - Acoustic communication typically dominates the power usage in underwater sensor networks. As networks underwater have very limited recharging capabilities, this challenges the network's ability to communicate collected data. To balance these conflicting needs, we utilize a sensor network platform with underwater acoustic communication, surface level radio communication, and a depth adjustment system to switch between them. Nodes determine if they should surface to communicate by approximating the network energy usage and data latency given the data transmission size. For a given path, we develop and examine a set of algorithms to select the nodes to rise to communicate the data via radio across the network while taking energy usage into account. We perform a preliminary analysis of the methods and show that for typical networks greedy approaches are nearly as good as centralized approaches, yet require minimal communication overhead and only local information.
UR - http://www.scopus.com/inward/record.url?scp=84871548873&partnerID=8YFLogxK
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U2 - 10.1145/2398936.2398976
DO - 10.1145/2398936.2398976
M3 - Conference contribution
AN - SCOPUS:84871548873
SN - 9781450317733
T3 - Proceedings of the 7th ACM International Conference on Underwater Networks and Systems, WUWNet 2012
BT - Proceedings of the 7th ACM International Conference on Underwater Networks and Systems, WUWNet 2012
T2 - 7th ACM International Conference on Underwater Networks and Systems, WUWNet 2012
Y2 - 5 November 2012 through 6 November 2012
ER -