Performance Analysis of Algorithms for Supporting Disconnected Write Operations in Wireless Web Environments

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dc.contributor.authorPhan, Ngoc Anhen
dc.contributor.committeechairChen, Ing-Rayen
dc.contributor.committeememberGracanin, Denisen
dc.contributor.committeememberBouguettaya, Athmanen
dc.contributor.departmentComputer Scienceen
dc.date.accessioned2014-03-14T20:48:44Zen
dc.date.adate1999-10-11en
dc.date.available2014-03-14T20:48:44Zen
dc.date.issued1999-11-19en
dc.date.rdate2000-10-11en
dc.date.sdate1999-12-01en
dc.description.abstractA mobile user may voluntarily disconnect itself from the web server to save battery life and also to avoid the high communication price. To allow web pages to be updated while the mobile user is disconnected from the web server, updates can be staged in the mobile unit and propagated back to the web server upon reconnection. In this thesis, we investigate methods for supporting disconnected write operations and develop a performance model which helps identify the optimal length of the disconnection period under which the cost of update propagation is minimized. We validate the analytic model with simulation in the thesis. We also show how the result can be applied to real-time web applications with a deadline requirement to propagate updates of web pages. The analysis result is particularly applicable to web applications which allow wireless mobile users to modify web contents while on the go. The algorithms that we have developed can be generally applied to other data items such as files and databases.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-120199-181248en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-120199-181248/en
dc.identifier.urihttp://hdl.handle.net/10919/35903en
dc.publisherVirginia Techen
dc.relation.haspartPhanthesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcoherency intervalen
dc.subjecthoadingen
dc.subjectperformance analysisen
dc.subjectdisconnected operationsen
dc.subjectreintegrationen
dc.subjectweb accessen
dc.subjectwireless mobile systemsen
dc.titlePerformance Analysis of Algorithms for Supporting Disconnected Write Operations in Wireless Web Environmentsen
dc.typeThesisen
thesis.degree.disciplineComputer Scienceen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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