Coordinated movement of multiple mobile sinks in a wireless sensor network for improved lifetime

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dc.citation.epage16en_US
dc.citation.spage1en_US
dc.citation.volumeNumber245 (2015)en_US
dc.contributor.authorKoç, M.en_US
dc.contributor.authorKorpeoglu, I.en_US
dc.date.accessioned2016-02-08T10:58:15Z
dc.date.available2016-02-08T10:58:15Z
dc.date.issued2015en_US
dc.departmentDepartment of Computer Engineeringen_US
dc.description.abstractSink mobility is one of the most effective solutions for improving lifetime and has been widely investigated for the last decade. Algorithms for single-sink mobility are not directly applied to the multiple-sink case due to the latter’s specific challenges. Most of the approaches proposed in the literature use mathematical programming techniques to solve the multiple-sink mobility problem. However, doing so leads to higher complexities when traffic flow information for any possible sink-site combinations is included in the model. In this paper, we propose two algorithms that do not consider all possible sink-site combinations to determine migration points. We first present a centralized movement algorithm that uses an energy-cost matrix for a user-defined threshold number of combinations to coordinate multiple-sink movement. We also give a distributed algorithm that does not use any prior network information and has a low message exchange overhead. Our simulations show that the centralized algorithm gives better network lifetime performance compared to previously proposed MinDiff-RE, random movement, and static-sink algorithms. Our distributed algorithm has a lower network lifetime than centralized algorithms; sinks travel significantly less than in all the other schemes.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:58:15Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2015en
dc.identifier.doi10.1186/s13638-015-0472-5en_US
dc.identifier.issn1687-1499
dc.identifier.urihttp://hdl.handle.net/11693/26319
dc.language.isoEnglishen_US
dc.publisherSpringerOpenen_US
dc.relation.isversionofhttp://dx.doi.org/10.1186/s13638-015-0472-5en_US
dc.source.titleEurasip Journal on Wireless Communications and Networkingen_US
dc.subjectEnergy-efficiencyen_US
dc.subjectMultiple-sink mobilityen_US
dc.subjectNetwork lifetime improvementen_US
dc.subjectWireless sensor networken_US
dc.subjectAlgorithmsen_US
dc.subjectEnergy efficiencyen_US
dc.subjectMathematical programmingen_US
dc.subjectCentralized algorithmsen_US
dc.subjectCoordinated movementen_US
dc.subjectEffective solutionen_US
dc.subjectMultiple mobile sinksen_US
dc.subjectMultiple sinksen_US
dc.subjectNetwork informationen_US
dc.subjectNetwork lifetimeen_US
dc.subjectTraffic flow informationen_US
dc.titleCoordinated movement of multiple mobile sinks in a wireless sensor network for improved lifetimeen_US
dc.typeArticleen_US

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