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dc.contributor.authorKarasabun, E.en_US
dc.contributor.authorKorpeoglu, I.en_US
dc.contributor.authorAykanat, Cevdeten_US
dc.date.accessioned2015-07-28T12:04:29Z
dc.date.available2015-07-28T12:04:29Z
dc.date.issued2013-04-07en_US
dc.identifier.issn1389-1286
dc.identifier.urihttp://hdl.handle.net/11693/13053
dc.description.abstractIn wireless sensor network applications where data gathered by different sensor nodes is correlated, not all sensor nodes need to be active for the wireless sensor network to be functional. Given that the sensor nodes that are selected as active form a connected wireless network, the inactive sensor nodes can be turned off. Allowing some sensor nodes to be active and some sensor nodes inactive interchangably during the lifecycle of the application helps the wireless sensor network to have a longer lifetime. The problem of determining a set of active sensor nodes in a correlated data environment for a fully operational wireless sensor network can be formulated as an instance of the connected correlation-dominating set problem. In this work, our contribution is twofold; we propose an effective and runtime-efficient iterative improvement heuristic to solve the active sensor node determination problem, and a benefit function that aims to minimize the number of active sensor nodes while maximizing the residual energy levels of the selected active sensor nodes. Extensive simulations we performed show that the proposed approach achieves a good performance in terms of both network lifetime and runtime efficiency. © 2012 Elsevier B.V. All rights reserved.en_US
dc.language.isoEnglishen_US
dc.source.titleComputer networksen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.comnet.2012.11.018en_US
dc.subjectWireless sensor networksen_US
dc.subjectCorrelated data gatheringen_US
dc.subjectActive sensor node determinationen_US
dc.titleActive node determination for correlated data gathering in wireless sensor networksen_US
dc.typeArticleen_US
dc.departmentDepartment of Computer Engineeringen_US
dc.citation.spage1124en_US
dc.citation.epage1138en_US
dc.citation.volumeNumber57en_US
dc.citation.issueNumber5en_US
dc.identifier.doi10.1016/j.comnet.2012.11.018en_US
dc.publisherElsevier BVen_US
dc.contributor.bilkentauthorAykanat, Cevdet


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