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On SC/FDE block transmission with reduced cyclic prefix assistance

2006Journal 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.accessioned2018-01-30T12:38:34Z
dc.date.available2018-01-30T12:38:34Z
dc.date.issued2006
dc.description“© © 2006 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”pt_PT
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. The resulting FDE performance is then evaluated in worst-case (CP-free) conditions, and the impact of previous decisions which are not error-free is shown to be rather small. In the following, we present and evaluate a novel class of reduced-CP SC/FDE schemes, which takes advantage of the DDC algorithm for replacing "seless" CP redundancy by fully useful channel coding redundancy: highly power/bandwidth efficient block transmission schemes, especially recommendable for both strongly time-dispersive and time-varying channel conditions, are then achieved.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGUSMÃO, A. [et al.] (2006) - On SC/FDE block transmission with reduced cyclic prefix assistance. In IEEE International Conference on Communications, Istanbul, 11-15 June. Doi: 10.1109/ICC.2006.255468pt_PT
dc.identifier.doi10.1109/ICC.2006.255468pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/5900
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInstitute of Electrical and Electronics Engineerspt_PT
dc.relation.publisherversionhttp://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4024852&isnumber=4024808pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCyclic prefix assistancept_PT
dc.subjectSC/FDE block transmissionpt_PT
dc.titleOn SC/FDE block transmission with reduced cyclic prefix assistancept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceIstambulpt_PT
oaire.citation.title2006 IEEE International Conference on Communicationspt_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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