A Novel Random Access for Fixed-Location Machine-to-Machine Communications in OFDMA Based Systems

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dc.contributor.authorKo, Kab Seokko
dc.contributor.authorKim, Min Jeongko
dc.contributor.authorBae, Kuk Yeolko
dc.contributor.authorSung, Dan Keunko
dc.contributor.authorKim, Jae Heungko
dc.contributor.authorAhn, Jae Youngko
dc.date.accessioned2013-03-12T21:13:08Z-
dc.date.available2013-03-12T21:13:08Z-
dc.date.created2012-10-29-
dc.date.created2012-10-29-
dc.date.issued2012-09-
dc.identifier.citationIEEE COMMUNICATIONS LETTERS, v.16, no.9, pp.1428 - 1431-
dc.identifier.issn1089-7798-
dc.identifier.urihttp://hdl.handle.net/10203/103525-
dc.description.abstractMachine-to-machine (M2M) communications typically exhibit features such as a large number of devices, low data-rates, small-sized packets, and low or no mobility, while human-to-human (H2H) communications typically support a small number of users, high data-rates, large-sized packets, and high mobility. To support M2M communications in future cellular systems, one of the most challenging problems is to resolve a collision problem in random access because of access attempts from a large number of devices. For a large class of fixed-location M2M services such as smart metering and remote sensing, each machine device has fixed uplink timing alignment (TA) due to a fixed distance between the machine device and its eNodeB. We propose a novel random access scheme based on its fixed TA information for M2M communications at a large number of fixed-location machine devices in future orthogonal frequency division multiple access (OFDMA)-based cellular systems like Long Term Evolution (LTE) system. The proposed random access scheme yields significantly lower collision probability, shorter access delay, and higher energy-efficiency, compared with the conventional random access scheme.-
dc.languageEnglish-
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC-
dc.titleA Novel Random Access for Fixed-Location Machine-to-Machine Communications in OFDMA Based Systems-
dc.typeArticle-
dc.identifier.wosid000308992000024-
dc.identifier.scopusid2-s2.0-84866605582-
dc.type.rimsART-
dc.citation.volume16-
dc.citation.issue9-
dc.citation.beginningpage1428-
dc.citation.endingpage1431-
dc.citation.publicationnameIEEE COMMUNICATIONS LETTERS-
dc.identifier.doi10.1109/LCOMM.2012.072012.120788-
dc.contributor.localauthorSung, Dan Keun-
dc.contributor.nonIdAuthorKim, Jae Heung-
dc.contributor.nonIdAuthorAhn, Jae Young-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorM2M-
dc.subject.keywordAuthorLTE-
dc.subject.keywordAuthorrandom access-
dc.subject.keywordAuthortiming alignment-
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