Utility based Dynamic Subcarrier Allocation for QoS Guarantees in SC-FMDA System

dc.contributor.authorLi, Yi-bing
dc.contributor.authorZhang, Xu
dc.contributor.authorYe, Fang
dc.contributor.authorGao, Zhen-guo
dc.coverage.issue4cs
dc.coverage.volume21cs
dc.date.accessioned2015-01-26T10:06:03Z
dc.date.available2015-01-26T10:06:03Z
dc.date.issued2012-12cs
dc.description.abstractTwo utility based dynamic subcarrier allocation (DSA) algorithms: the max exponential utility (MEU) algorithm and the max weighted exponential utility (MWEU) algorithm are proposed for quality of service (QoS) guarantees in single carrier frequency division multiple access (SC-FDMA) system. With the objective of maximizing the system total utility, the two proposed DSA algorithms are designed based on a cross-layer manner so as to guarantee the diverse QoS requirements of real-time traffic. The proposed MEU algorithm exploits the property of the exponential utility function to provide higher allocation priority for the user in heavy traffic load. Furthermore, the MWEU algorithm is proposed as a kind of priority adjustable DSA scheduling by introducing the grading theory and the weight factor into the utility function. Simulation results indicate that the MEU algorithm is able to achieve outstanding average delay and system rate-sum capacity performance. And the MWEU algorithm can further improve the delay variance and delay violation probability performance by setting appropriate allocation weights. It is also concluded that the adaptive weight factor value of the MWEU algorithm can be derived according to the practical QoS requirements and average packets arrival rate.en
dc.formattextcs
dc.format.extent1147-1155cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2012, vol. 21, č. 4, s. 1147-1155. ISSN 1210-2512cs
dc.identifier.issn1210-2512cs
dc.identifier.urihttp://hdl.handle.net/11012/37223
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2012/12_04_1147_1155.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectSingle carrier frequency division multiple access (SC-FDMA)en
dc.subjectdynamic subcarrier allocation (DSA)en
dc.subjectquality of service (QoS)en
dc.subjectutility function; max exponential utility (MEU) algorithmen
dc.subjectmax weighted exponential utility (MWEU) algorithm.en
dc.titleUtility based Dynamic Subcarrier Allocation for QoS Guarantees in SC-FMDA Systemen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
12_04_1147_1155.pdf
Size:
276.38 KB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Collections