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Minimising Complexity in Iterative Multiuser Detection Using Dynamic Decoding Schedules

Shepherd, David; Brannstrom, Fredrik; Shi, Zhenning; Reed, Mark

Description

In this paper we utilize extrinsic information transfer (EXIT) chart analysis with unequal user power levels in a coded direct-sequence code-division multiple-access (DS-CDMA) multiuser receiver to derive a dynamic decoding schedule. Conventional receivers generally follow a static predetermined decoding schedule. However, decoding delay and complexity can be significantly reduced while maintaining BER performance through a dynamic decoding schedule optimized for a given load and transmit power...[Show more]

dc.contributor.authorShepherd, David
dc.contributor.authorBrannstrom, Fredrik
dc.contributor.authorShi, Zhenning
dc.contributor.authorReed, Mark
dc.coverage.spatialCannes France
dc.date.accessioned2015-12-07T22:23:34Z
dc.date.createdJuly 2-5 2006
dc.identifier.isbn1424497118
dc.identifier.urihttp://hdl.handle.net/1885/20764
dc.description.abstractIn this paper we utilize extrinsic information transfer (EXIT) chart analysis with unequal user power levels in a coded direct-sequence code-division multiple-access (DS-CDMA) multiuser receiver to derive a dynamic decoding schedule. Conventional receivers generally follow a static predetermined decoding schedule. However, decoding delay and complexity can be significantly reduced while maintaining BER performance through a dynamic decoding schedule optimized for a given load and transmit power configuration. Verified through simulations, we show that complexity savings of up to 50% can be achieved. We also derive the effective EXIT charts which can be used for the convergence analysis and performance predictions of unequal power CDMA systems.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.relation.ispartofseriesIEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2006)
dc.sourceProceedings of the 7th Workshop on Signal Processing Advances in Wireless Communications
dc.subjectKeywords: Binary sequences; Cellular radio systems; Code division multiple access; Convergence of numerical methods; Decoding; Graphic methods; Multiuser detection; Signal processing; Telecommunication; Bit error rate (BER) performance; Cdma systems; Conventional r
dc.titleMinimising Complexity in Iterative Multiuser Detection Using Dynamic Decoding Schedules
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2006
local.identifier.absfor100502 - Broadband and Modem Technology
local.identifier.ariespublicationu3357961xPUB14
local.type.statusPublished Version
local.contributor.affiliationShepherd, David, College of Engineering and Computer Science, ANU
local.contributor.affiliationBrannstrom, Fredrik, Chalmers University of Technology
local.contributor.affiliationShi, Zhenning, College of Engineering and Computer Science, ANU
local.contributor.affiliationReed, Mark, College of Engineering and Computer Science, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage5
local.identifier.doi10.1109/SPAWC.2006.346370
dc.date.updated2015-12-07T09:19:28Z
local.identifier.scopusID2-s2.0-48749116781
CollectionsANU Research Publications

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