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dc.creatorGitzenis, S.en
dc.creatorBambos, N.en
dc.date.accessioned2015-11-23T10:28:21Z
dc.date.available2015-11-23T10:28:21Z
dc.date.issued2009
dc.identifier10.1109/tmc.2009.34
dc.identifier.issn1536-1233
dc.identifier.urihttp://hdl.handle.net/11615/27974
dc.description.abstractWe investigate a wireless computing architecture, where mobile terminals can execute their computation tasks either 1) locally, at the terminal's processor, or 2) remotely, assisted by the network infrastructure, or even 3) combining the former two options. Remote execution involves: 1) sending the task to a computation server via the wireless network, 2) executing the task at the server, and 3) downloading the results of the computation back to the terminal. Hence, it results to energy savings at the terminal (sparing its processor from computations) and execution speed gains due to (typically) faster server processor(s), as well as overheads due to the terminal server wireless communication. The net gains (or losses) are contingent on network connectivity and server load. These may vary in time, depending on user mobility, network, and server congestion (due to the concurrent sessions/connections from other terminals). In local execution, the wireless terminal faces the dilemma of power managing the processor, trading-off fast execution versus low energy consumption. We model the system within a Markovian dynamic control framework, allowing the computation of optimal execution policies. We study the associated energy versus delay trade-off and assess the performance gains attained in various test cases in comparison to conventional benchmark policies.en
dc.sourceIeee Transactions on Mobile Computingen
dc.source.uri<Go to ISI>://WOS:000267938800004
dc.subjectTask migrationen
dc.subjectpower managementen
dc.subjectprocessor power managementen
dc.subjectmobileen
dc.subjectcomputingen
dc.subjectenergy efficiencyen
dc.subjectComputer Science, Information Systemsen
dc.subjectTelecommunicationsen
dc.titleJoint Task Migration and Power Management in Wireless Computingen
dc.typejournalArticleen


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