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공공누리This item is licensed Korea Open Government License

Title
Cross-Layered Approach for (m,k)-Firm Stream in Wireless Sensor Networks
Author(s)
김기일성태응
Publication Year
2012-03-01
Abstract
Asmostsensornodesaredeployedtodetectandtransmitinterestingeventsorphenomenaaroundthem,thereal-timedeliveryofsensedinformationwithinapredetermineddeadlinebecomesoneofthebiggestchallengesinwirelesssensornetworks.Eventhoughsomeoftherecentresearchworkshavebeenpublishedinspecificfield,theyaredesignedtocovergeneralpurposeapplications.Therefore,mostofapplicationscannotbesupportedbyexistingschemesespeciallywhentherequirementisapplication-specificreal-time.Inorder
tosolvethisproblem,wemodelthetargetapplicationasaspecifictraffic,(m,k)-firmstream,
whichisknownashardreal-timerequirement,andthenproposeaschemetoguaranteerealtimedelivery.Todevelopthese,weintroduceacross-layerdesigntobringcollaboration
betweenlayersunderthebasicprinciplethatreal-timedeliverywillhardlyachievebyindependentschemeineachlayer.Thus,therequirementsofapplicationarepassedtolowerlayersandusedtoadjusttransmissionpower,prioritizepackets,andfindtheadequatepathinordertomeet(m,k)-firmconstraintsforanystreamdynamically.Finally,simulationresultsrevealthatlowfailureprobabilityforreal-timerequirementson(m,k)-firmstreamisachievedbytheproposedscheme.
Keyword
Real-time; (m; k)-firm; Wirelesssensornetworks
Journal Title
Wirelesspersonalcommunications
Citation Volume
68
ISSN
0929-6212
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14076
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