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Article: Ray-model-based routing for underwater acoustic sensor networks accounting for anisotropic sound propagation

TitleRay-model-based routing for underwater acoustic sensor networks accounting for anisotropic sound propagation
Authors
Issue Date2013
PublisherDenshi Jouhou Tsuushin Gakkai. The Journal's web site is located at http://ietcom.oxfordjournals.org/
Citation
IEICE Transactions on Communications, 2013, E96-B n. 8, p. 2060-2068 How to Cite?
AbstractIn classical routing protocols, geographical distances/locations are typically used as the metric to select the best route, under the assumption that shorter distances exhibit lower energy consumption and nodes within the communication range of the sender can receive packets with a certain success probability. However, in underwater acoustic sensor networks (UASNs), sound propagation in the ocean medium is more complex than that in the air due to many factors, including sound speed variations and the interaction of sound waves with the sea surface and floor, causing the sound rays to bend. Therefore, propagation of sound is anisotropic in water, and may cause a phenomenon called shadow zone where nodes in the communication range of the sender cannot hear any signal. This renders conventional routing protocols no longer energy-efficient. In this paper, we make use of the ray-model to account for the environment-dependent behavior of the underwater channel, re-define nodes' one-hop neighbors based on signal attenuation rather than geographical distance, and design a distributed energy-efficient routing protocol for UASNs. Results show that our ray-model-based routing policy consistently outperforms the shortest path policy, and performs very close to the optimal one in several scenarios.
Persistent Identifierhttp://hdl.handle.net/10722/191353
ISSN
2015 Impact Factor: 0.3
2015 SCImago Journal Rankings: 0.184
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Pen_US
dc.contributor.authorZhang, LINen_US
dc.contributor.authorLi, VOKen_US
dc.date.accessioned2013-10-15T06:55:24Z-
dc.date.available2013-10-15T06:55:24Z-
dc.date.issued2013en_US
dc.identifier.citationIEICE Transactions on Communications, 2013, E96-B n. 8, p. 2060-2068en_US
dc.identifier.issn0916-8516-
dc.identifier.urihttp://hdl.handle.net/10722/191353-
dc.description.abstractIn classical routing protocols, geographical distances/locations are typically used as the metric to select the best route, under the assumption that shorter distances exhibit lower energy consumption and nodes within the communication range of the sender can receive packets with a certain success probability. However, in underwater acoustic sensor networks (UASNs), sound propagation in the ocean medium is more complex than that in the air due to many factors, including sound speed variations and the interaction of sound waves with the sea surface and floor, causing the sound rays to bend. Therefore, propagation of sound is anisotropic in water, and may cause a phenomenon called shadow zone where nodes in the communication range of the sender cannot hear any signal. This renders conventional routing protocols no longer energy-efficient. In this paper, we make use of the ray-model to account for the environment-dependent behavior of the underwater channel, re-define nodes' one-hop neighbors based on signal attenuation rather than geographical distance, and design a distributed energy-efficient routing protocol for UASNs. Results show that our ray-model-based routing policy consistently outperforms the shortest path policy, and performs very close to the optimal one in several scenarios.-
dc.languageengen_US
dc.publisherDenshi Jouhou Tsuushin Gakkai. The Journal's web site is located at http://ietcom.oxfordjournals.org/-
dc.relation.ispartofIEICE Transactions on Communicationsen_US
dc.titleRay-model-based routing for underwater acoustic sensor networks accounting for anisotropic sound propagationen_US
dc.typeArticleen_US
dc.identifier.emailLi, VOK: vli@eee.hku.hken_US
dc.identifier.authorityLi, VOK=rp00150en_US
dc.identifier.doi10.1587/transcom.E96.B.2060-
dc.identifier.scopuseid_2-s2.0-84882736678-
dc.identifier.hkuros225420en_US
dc.identifier.hkuros240489-
dc.identifier.volumeE96-B-
dc.identifier.issue8-
dc.identifier.spage2060en_US
dc.identifier.epage2068en_US
dc.identifier.isiWOS:000323236600002-
dc.publisher.placeJapan-

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