A novel queue-aware wireless link adaptation mechanism and its fixed-point analytical model

Simple item page
dc.citation.epage20en_US
dc.citation.issueNumber1en_US
dc.citation.spage1en_US
dc.citation.volumeNumber2015en_US
dc.contributor.authorOzturk, O.en_US
dc.contributor.authorAkar, N.en_US
dc.date.accessioned2016-02-08T10:49:19Z
dc.date.available2016-02-08T10:49:19Z
dc.date.issued2015en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractA point-to-point (PTP) wireless link is studied that carries long-lived TCP flows and is controlled with active queue management (AQM). A cross-layer queue-aware adaptive modulation and coding (AMC)-based link adaptation (LA) mechanism is proposed for this wireless link to improve the TCP-level throughput relative to the case where AMC decisions are made based solely on the physical layer (PHY) parameters. The proposed simple-to-implement LA mechanism involves the use of an aggressive modulation and coding scheme (MCS) with high spectral efficiency and high block error rates when the queue occupancy exceeds a certain threshold, but otherwise a relatively conservative MCS with lower spectral efficiency and lower block error rates. A fixed-point analytical model is proposed to obtain the aggregate TCP throughput attained at this wireless link and the model is validated by ns-3 simulations. Numerical experimentation with the proposed analytical model applied to an IEEE 802.16-based wireless link demonstrates the effectiveness of the proposed queue-aware LA (QAWLA) mechanism in a wide variety of scenarios including cases where the channel information is imperfect. The impact of the choice of the queue occupancy threshold of QAWLA is extensively studied with respect to the choice of AQM parameters in order to provide engineering guidelines for the provisioning of the wireless link.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:49:19Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2015en
dc.identifier.doi10.1186/s13638-015-0469-0en_US
dc.identifier.issn1687-1472
dc.identifier.urihttp://hdl.handle.net/11693/25702
dc.language.isoEnglishen_US
dc.publisherSpringerOpenen_US
dc.relation.isversionofhttp://dx.doi.org/10.1186/s13638-015-0469-0en_US
dc.source.titleEurasip Journal on Wireless Communications and Networkingen_US
dc.subjectFixed-point TCP modelen_US
dc.subjectIEEE 802.16en_US
dc.subjectQueue-aware link adaptationen_US
dc.subjectAnalytical modelsen_US
dc.subjectEfficiencyen_US
dc.subjectLocal area networksen_US
dc.subjectModulationen_US
dc.subjectNetwork layersen_US
dc.subjectQueueing theoryen_US
dc.subjectRayleigh fadingen_US
dc.subjectTransmission control protocolen_US
dc.subjectActive queue managementen_US
dc.subjectAdaptive modulation and codingen_US
dc.subjectHigh spectral efficiencyen_US
dc.subjectLink adaptationen_US
dc.subjectModulation and coding schemesen_US
dc.subjectNumerical experimentationsen_US
dc.subjectTCP modelingen_US
dc.subjectQueueing networksen_US
dc.titleA novel queue-aware wireless link adaptation mechanism and its fixed-point analytical modelen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
A novel queue-aware wireless link adaptation mechanism and its fixed-point analytical model.pdf
Size:
1.31 MB
Format:
Adobe Portable Document Format
Description:
Full printable version
Download

Collections

Department of Electrical and Electronics Engineering