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Code-assisted SC/FDE block transmission with reduced cyclic prefix overhead

2005Journal article Restricted access
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dc.contributor.authorGusmão, António
dc.contributor.authorTorres, Paulo
dc.contributor.authorDinis, Rui
dc.contributor.authorEsteves, Nelson
dc.date.accessioned2021-12-15T17:12:33Z
dc.date.available2021-12-15T17:12:33Z
dc.date.issued2005
dc.description.abstractFor conventional CP-assisted (Cyclic Prefix) SC/FDE implementations (Single- Carrier/Frequency Domain Equalisation), as well as for OFDM implementations (Orthogonal Frequency Division Multiplexing), the CP length is known to be selected on the basis of the expected maximum delay spread. Next, the data block size can be chosen to be large enough to minimise the CP overhead, yet small enough to make the channel variation over the block negligible. This paper considers the possibility of reducing the overall CP assistance, when transmitting sequences of SC blocks, while avoiding an excessively long FFT block for FDE purposes and keeping good performances through a moderate increase of the FDE receiver complexity. Firstly, we present an algorithm for a Decision-Directed Correction (DDC) of the FDE inputs when the CP is not long enough to cope with the time-dispersive channel effects. Next, we present and evaluate a novel class of reduced CP SC/FDE schemes, which takes advantage of the DDC algorithm for replacing ”useless” CP redundancy by fully useful channel coding redundancy. A very efficient block transmission, especially for both strongly time-dispersive and time-varying channel conditions, is then achieved.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGusmao, A., Torres, P., Dinis, R., & Esteves, N. (2005, July). Code-assisted SC/FDE block transmission with reduced cyclic prefix overhead. In IEE/IEEE International Symposium on Communication Theory and Applications, ISCTA’05. p. 398-402pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/7753
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/pt_PT
dc.subjectCyclic Prefixpt_PT
dc.subjectOrthogonal Frequency Division Multiplexingpt_PT
dc.titleCode-assisted SC/FDE block transmission with reduced cyclic prefix overheadpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleIEE/IEEE International Symposium on Communication Theory and Applications, ISCTA’05pt_PT
person.familyNameTorres
person.givenNamePaulo
person.identifier.ciencia-id1819-8627-0A5E
person.identifier.orcid0000-0002-7177-3401
person.identifier.scopus-author-id17436234000
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationdc9de038-b1c6-4869-aba0-2d26ce85ccb7
relation.isAuthorOfPublication.latestForDiscoverydc9de038-b1c6-4869-aba0-2d26ce85ccb7

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