Title:
Efficient Communication Protocols for Underwater Acoustic Sensor Networks

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dc.contributor.advisor Akyildiz, Ian F.
dc.contributor.author Pompili, Dario en_US
dc.contributor.committeeMember Fekri, Faramarz
dc.contributor.committeeMember Mostafa H. Ammar
dc.contributor.committeeMember Sivakumar, Raghupathy
dc.contributor.committeeMember Hunt, William D.
dc.contributor.department Electrical and Computer Engineering en_US
dc.date.accessioned 2007-08-16T17:58:45Z
dc.date.available 2007-08-16T17:58:45Z
dc.date.issued 2007-06-14 en_US
dc.description.abstract Underwater sensor networks find applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, tactical surveillance, and mine reconnaissance. The enabling technology for these applications is acoustic wireless networking. UnderWater Acoustic Sensor Networks (UW-ASNs) consist of sensors and Autonomous Underwater Vehicles (AUVs) deployed to perform collaborative monitoring tasks. The objective of this research is to explore fundamental key aspects of underwater acoustic communications, propose communication architectures for UW-ASNs, and develop efficient sensor communication protocols tailored for the underwater environment. Specifically, different deployment strategies for UW-ASNs are studied, and statistical deployment analysis for different architectures is provided. Moreover, a model characterizing the underwater acoustic channel utilization efficiency is introduced. The model allows setting the optimal packet size for underwater communications. Two distributed routing algorithms are proposed for delay-insensitive and delay-sensitive applications. The proposed routing solutions allow each node to select its next hop, with the objective of minimizing the energy consumption taking the different application requirements into account. In addition, a resilient routing solution to guarantee survivability of the network to node and link failures in long-term monitoring missions is developed. Moreover, a distributed Medium Access Control (MAC) protocol for UW-ASNs is proposed. It is a transmitter-based code division multiple access scheme that incorporates a novel closed-loop distributed algorithm to set the optimal transmit power and code length. It aims at achieving high network throughput, low channel access delay, and low energy consumption. Finally, an efficient cross-layer communication solution tailored for multimedia traffic (i.e., video and audio streams, still images, and scalar sensor data) is introduced. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/16301
dc.publisher Georgia Institute of Technology en_US
dc.subject Networking en_US
dc.subject Underwater en_US
dc.subject Communication en_US
dc.subject Protocols en_US
dc.subject Acoustic en_US
dc.subject Sensor networks en_US
dc.subject.lcsh Underwater acoustic telemetry en_US
dc.subject.lcsh Sensor networks en_US
dc.subject.lcsh Routing (Computer network management) en_US
dc.title Efficient Communication Protocols for Underwater Acoustic Sensor Networks en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.corporatename School of Electrical and Computer Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication 5b7adef2-447c-4270-b9fc-846bd76f80f2
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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