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Multi-node processing for asymmetrical communications in underwater acoustic networks

2009-05Conference object Open access
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dc.contributor.authorSilva, A.
dc.contributor.authorHuillery, J.
dc.contributor.authorJesus, S. M.
dc.date.accessioned2014-10-08T14:24:06Z
dc.date.available2014-10-08T14:24:06Z
dc.date.issued2009-05
dc.description.abstractUnderwater acoustic communication networks have attracted attention for its applications in many areas such as mine warfare, rapid environmental assessment or search and rescue, where there is the need for conserted action of a group of observers/actuators. A common requirement in most of these applications is the need to make accessible to the global (terrestrial/aerial) user network large amounts of critical underwater collected data. This paper addresses this requirement by using multichannel nodes providing an asymmetrical point-topoint (P2P) connection where the upload link has a much higher data rate than the download link. The emphasis of this work is not so much on the final channel throughput but on establishing the optimal processing of spatially distributed multichannel nodes that serve as interface between the underwater nodes and the global/user network. The adopted strategy relies on passive time-reversal which can be viewed as a spatial pre-equalizer for each multichannel node. Then an intersymbol interference optimal combination of various nodes is divised for balancing poor communications of one or more nodes in the network. The method and techniques are theoretically derived and applied to real data acquired with a network of 2 surface buoys over an environmentally challenging area off the coast of Portugal in July 2007.por
dc.description.sponsorshipFCTpor
dc.identifier.citationA.SILVA, J. HUILLERY and S.M. JESUS, "Multi-node processing for asymmetrical communications in underwater acoustic networks'', IEEE International Workshop on Underwater Networks (WUnderNet), pp. 1136-1141.por
dc.identifier.doihttp://dx.doi.org/10.1109/WAINA.2009.27
dc.identifier.isbn978-1-4244-3999-7
dc.identifier.otherAUT: SJE00662; ASI00912;
dc.identifier.urihttp://hdl.handle.net/10400.1/5228
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherIEEEpor
dc.relationPHITOM - Probabilistic High-Frequency Ocean Tomography for Underwater Communications and Navigation
dc.relationVirtual acoustic barriers for underwater protection (VAB)
dc.relationEnvironmental assessment with a RAnDom field of Acoustic Receivers RADAR
dc.relation.publisherversionhttp://ieeexplore.ieee.org/search/searchresult.jsp?queryText%3D978-1-4244-3999-7&refinements=4275116649&pageNumber=1&resultAction=REFINEpor
dc.titleMulti-node processing for asymmetrical communications in underwater acoustic networkspor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitlePHITOM - Probabilistic High-Frequency Ocean Tomography for Underwater Communications and Navigation
oaire.awardTitleVirtual acoustic barriers for underwater protection (VAB)
oaire.awardTitleEnvironmental assessment with a RAnDom field of Acoustic Receivers RADAR
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEEA-TEL%2F71263%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FMAR%2F59008%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCTI%2FCTA%2F47719%2F2002/PT
oaire.citation.conferencePlaceBradfordpor
oaire.citation.endPage1141por
oaire.citation.startPage1136por
oaire.citation.titleInternational Conference on Advanced Information Networking and Applications Workshopspor
oaire.fundingStream3599-PPCDT
oaire.fundingStreamPOCI
oaire.fundingStreamPOCI
person.familyNameSilva
person.familyNameJesus
person.givenNameAntónio
person.givenNameSergio
person.identifier.ciencia-idEB17-11D8-E7BD
person.identifier.orcid0000-0002-1724-7777
person.identifier.orcid0000-0002-6021-1761
person.identifier.ridN-6554-2013
person.identifier.scopus-author-id55846463600
person.identifier.scopus-author-id7003729485
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typeconferenceObjectpor
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