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dc.contributor.authorJiang, JRen_US
dc.contributor.authorTseng, YCen_US
dc.contributor.authorHsu, CSen_US
dc.contributor.authorLai, THen_US
dc.date.accessioned2014-12-08T15:35:16Z-
dc.date.available2014-12-08T15:35:16Z-
dc.date.issued2005-02-01en_US
dc.identifier.issn1383-469Xen_US
dc.identifier.urihttp://dx.doi.org/10.1023/B:MONE.0000048553.45798.5een_US
dc.identifier.urihttp://hdl.handle.net/11536/23910-
dc.description.abstractThis paper investigates the power mode management problem for an IEEE 802.11- based mobile ad hoc network (MANET) that allows mobile hosts to tune to the power-saving ( PS) mode. There are two major issues that need to be addressed in this problem: ( a) wakeup prediction and (b) neighbor discovery. The former is to deliver buffered packets to a PS host at the right time when its radio is turned on. The latter is to monitor the environment change under a mobile environment. One costly, and not scalable, solution is to time-synchronize all hosts. Another possibility is to design asynchronous protocols as proposed by Tseng et al. in [ 25]. In this paper, we adopt the latter approach and correlate this problem to the quorum system concept. We identify a rotation closure property for quorum systems. It is shown that any quorum system that satisfies this property can be translated to an asynchronous power-saving protocol for MANETs. Thus, the result bridges the classical quorum system design problem in the area of distributed systems to the power mode management problem in the area of mobile ad hoc networks. We derive a lower bound for quorum sizes for any quorum system that satisfies the rotation closure property. We identify a group of quorum systems that are optimal or near optimal in terms of quorum sizes, which can be translated to efficient asynchronous power-saving protocols. We also propose a new e-torus quorum system, which can be translated to an adaptive protocol that allows designers to trade hosts' neighbor sensibility for power efficiency. Simulation experiments are conducted to evaluate and compare the proposed protocols.en_US
dc.language.isoen_USen_US
dc.subjectIEEE 802.11en_US
dc.subjectdistributed systemen_US
dc.subjectmobile ad hoc network (MANET)en_US
dc.subjectpower managementen_US
dc.subjectquorum systemen_US
dc.subjectwireless communicationen_US
dc.titleQuorum-based asynchronous power-saving protocols for IEEE 802.11 ad hoc networksen_US
dc.typeArticleen_US
dc.identifier.doi10.1023/B:MONE.0000048553.45798.5een_US
dc.identifier.journalMOBILE NETWORKS & APPLICATIONSen_US
dc.citation.volume10en_US
dc.citation.issue1-2en_US
dc.citation.spage169en_US
dc.citation.epage181en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000225185500013-
dc.citation.woscount54-
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