Optical sensing as a means of monitoring health of multicomputer networks

dc.contributor.authorForbis, David L.en
dc.contributor.committeechairMurphy, Kent A.en
dc.contributor.committeememberClaus, Richard O.en
dc.contributor.committeememberMidkiff, Scott F.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:50:43Zen
dc.date.adate2009-11-24en
dc.date.available2014-03-14T21:50:43Zen
dc.date.issued1994-07-05en
dc.date.rdate2009-11-24en
dc.date.sdate2009-11-24en
dc.description.abstractThe use of optical sensors to perform health monitoring in fault-tolerant multicomputers can allow the multicomputer to detect imminent failure in a particular section of the interconnection network due to damaging strain. This detection method allows the rerouting of critical data before data link failure occurs. This thesis investigates the implementation of the extrinsic Fabry-Perot interferometer into an optical hybrid communications/sensing network. A testbed of personal computers, acting as nodes of a multicomputer, are used to monitor the integrity of the network to a high degree of accuracy. When a node determines that an adjacent data link is no longer reliable due to physical damage, communications are rerouted and the node is shut down. Results of experiments with the testbed have shown that redundant nodes can be used to share computational loads, increasing the performance of the multicomputer, until network failure forces redundant nodes to assume full responsibility for computational tasks. Multicomputer performance suffers as a result of network damage, but full functionality is retained with no occurrence of errors or unknown conditions due to data link failure.en
dc.description.degreeMaster of Scienceen
dc.format.extentvi, 64 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-11242009-020318en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11242009-020318/en
dc.identifier.urihttp://hdl.handle.net/10919/46024en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1994.F673.pdfen
dc.relation.isformatofOCLC# 31298220en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1994.F673en
dc.subject.lcshComputer networksen
dc.subject.lcshFabry-Perot interferometersen
dc.subject.lcshFault-tolerant computingen
dc.subject.lcshOptical detectorsen
dc.titleOptical sensing as a means of monitoring health of multicomputer networksen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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