Title:
Q-Fabric: System Support for Continuous Online Quality Management

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dc.contributor.advisor Schwan, Karsten
dc.contributor.author Poellabauer, Christian en_US
dc.contributor.committeeMember Eisenhauer, Greg
dc.contributor.committeeMember Franke, Hubertus
dc.contributor.committeeMember Pande, Santosh
dc.contributor.committeeMember Pu, Calton
dc.contributor.department Computing en_US
dc.date.accessioned 2005-03-03T22:02:42Z
dc.date.available 2005-03-03T22:02:42Z
dc.date.issued 2004-04-12 en_US
dc.description.abstract The explosive growth in networked systems and applications and the increase in device capabilities (as evidenced by the availability of inexpensive multimedia devices) enable novel complex distributed applications, including video conferencing, on-demand computing services, and virtual environments. These applications' need for high performance, real-time, or reliability requires the provision of Quality of Service (QoS) guarantees along the path of information exchange between two or more communicating systems. Execution environments that are prone to dynamic variability and uncertainty make QoS provision a challenging task, e.g., changes in user behavior, resource requirements, resource availabilities, or system failures are difficult or even impossible to predict. Further, with the coexistence of multiple adaptation techniques and resource management mechanisms, it becomes increasingly important to provide an integrated or cooperative approach to distributed QoS management. This work's goals are the provision of system-level tools needed for the efficient integration of multiple adaptation approaches available at different layers of a system (e.g., application-level, operating system, or network) and the use of these tools such that distributed QoS management is performed efficiently with predictable results. These goals are addressed constructively and experimentally with the Q-Fabric architecture, which provides the required system-level mechanisms to efficiently integrate multiple adaptation techniques. The foundation of this integration is the event-based communication implemented by it, realizing a loosely-coupled group communication approach frequently found in multi-peer applications. Experimental evaluations are performed in the context of a mobile multimedia application, where the focus is directed toward efficient energy consumption on battery-operated devices. Here, integration is particularly important to prevent multiple energy management techniques found on modern mobile devices to negate the energy savings of each other. en_US
dc.description.degree Ph.D. en_US
dc.format.extent 1337460 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/5201
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Quality of service en_US
dc.subject Power management
dc.subject Operating systems
dc.subject.lcsh Network performance (Telecommunication) en_US
dc.subject.lcsh Telecommunication systems Design and construction en_US
dc.subject.lcsh Multimedia systems Design and construction en_US
dc.title Q-Fabric: System Support for Continuous Online Quality Management en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Schwan, Karsten
local.contributor.corporatename College of Computing
relation.isAdvisorOfPublication a89a7e85-7f70-4eee-a49a-5090d7e88ce6
relation.isOrgUnitOfPublication c8892b3c-8db6-4b7b-a33a-1b67f7db2021
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