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dc.contributor.authorRice, Joseph
dc.dateJune 28 - July 1, 2005
dc.date.accessioned2014-04-14T16:48:10Z
dc.date.available2014-04-14T16:48:10Z
dc.date.issued2005-06
dc.identifier.citationProceedings of the International Conference “Underwater Acoustic Measurements: Technologies & Results” Heraklion, Crete, Greece, 28th June – 1st July 2005
dc.identifier.urihttp://hdl.handle.net/10945/40396
dc.description.abstractSeaweb networks interconnect fixed and mobile nodes distributed across a wide area in the undersea environment. Acoustic communications between neighboring DSP-equipped telesonar modems is the basis for the physical layer. Node-to-node ranging is a by-product of telesonar signaling, permitting localization of sensor nodes and navigation of mobile nodes such as submarines and autonomous vehicles. The unusual characteristics of the physical-layer medium constrain the design of the link and network layers. Seaweb data-packet communications are achieved through the ancillary use of compact channel-tolerant utility packets. Measuring the available acoustic channel permits link optimization by adapting the data-packet signal parameters to the prevailing channel attributes. Link-layer methods including forward error correction, handshaking, and automatic repeat request provide reliability. Network-layer mechanisms such as distributed routing tables, neighbor-sense multiple access, packet serialization, and return receipts enhance quality of service. This paper reviews the concept of operations for undersea networks with illustrative examples of actual Seaweb deployments.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleSeaweb Acoustic Communication and Navigation Networksen_US
dc.typeArticleen_US
dc.contributor.departmentPhysics
dc.subject.authorSeaweben_US
dc.subject.authoracoustic communicationen_US
dc.subject.authorundersea networksen_US
dc.subject.authorundersea navigationen_US
dc.subject.authorundersea acoustic networksen_US


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