On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels

Bibliographic Details
Main Author: Guerreiro, João
Publication Date: 2016
Other Authors: Dinis, Rui, Carvalho, Paulo Montezuma
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/11144/3080
Summary: Orthogonal frequency division multiplexing (OFDM) schemes are widely employed for digital transmission in several wireline and wireless communication systems. Their main drawback is the high envelope fluctuations of the transmitted signals, which leads to amplification difficulties and inefficiencies that are especially important in satellite communications. Constant envelope OFDM (CE-OFDM) techniques appear as a solution to those amplification problems since they are compatible with low-cost and highly efficient strongly nonlinear amplifiers. The basic idea behind CE-OFDM is to use the OFDM signal to modulate the phase of a given carrier. However, CE-OFDM is a nonlinear modulation and receivers based on phase demodulation can be far from optimum. In this paper we study analytically the optimum asymptotic performance of CE-OFDM schemes. It is shown that the optimum performance of CE-OFDM can be substantially better than the performance of ideal linear OFDM schemes, especially for frequency-selective channels.
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spelling On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channelsperformance evaluationCE-OFDMOFDM signalsnonlinear distortionoptimum detectionOrthogonal frequency division multiplexing (OFDM) schemes are widely employed for digital transmission in several wireline and wireless communication systems. Their main drawback is the high envelope fluctuations of the transmitted signals, which leads to amplification difficulties and inefficiencies that are especially important in satellite communications. Constant envelope OFDM (CE-OFDM) techniques appear as a solution to those amplification problems since they are compatible with low-cost and highly efficient strongly nonlinear amplifiers. The basic idea behind CE-OFDM is to use the OFDM signal to modulate the phase of a given carrier. However, CE-OFDM is a nonlinear modulation and receivers based on phase demodulation can be far from optimum. In this paper we study analytically the optimum asymptotic performance of CE-OFDM schemes. It is shown that the optimum performance of CE-OFDM can be substantially better than the performance of ideal linear OFDM schemes, especially for frequency-selective channels.IEEE2017-06-14T14:44:03Z2016-07-01T00:00:00Z2016-07conference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/11144/3080eng978-1-4673-8409-4978-1-4673-8408-7978-1-4673-8410-010.1109/TEMU.2016.7551924Guerreiro, JoãoDinis, RuiCarvalho, Paulo Montezumainfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-08-01T02:05:12Zoai:repositorio.ual.pt:11144/3080Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T18:42:12.002015Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
title On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
spellingShingle On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
Guerreiro, João
performance evaluation
CE-OFDM
OFDM signals
nonlinear distortion
optimum detection
title_short On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
title_full On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
title_fullStr On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
title_full_unstemmed On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
title_sort On the Optimum Performance of CE-OFDM Schemes in Frequency-Selective Channels
author Guerreiro, João
author_facet Guerreiro, João
Dinis, Rui
Carvalho, Paulo Montezuma
author_role author
author2 Dinis, Rui
Carvalho, Paulo Montezuma
author2_role author
author
dc.contributor.author.fl_str_mv Guerreiro, João
Dinis, Rui
Carvalho, Paulo Montezuma
dc.subject.por.fl_str_mv performance evaluation
CE-OFDM
OFDM signals
nonlinear distortion
optimum detection
topic performance evaluation
CE-OFDM
OFDM signals
nonlinear distortion
optimum detection
description Orthogonal frequency division multiplexing (OFDM) schemes are widely employed for digital transmission in several wireline and wireless communication systems. Their main drawback is the high envelope fluctuations of the transmitted signals, which leads to amplification difficulties and inefficiencies that are especially important in satellite communications. Constant envelope OFDM (CE-OFDM) techniques appear as a solution to those amplification problems since they are compatible with low-cost and highly efficient strongly nonlinear amplifiers. The basic idea behind CE-OFDM is to use the OFDM signal to modulate the phase of a given carrier. However, CE-OFDM is a nonlinear modulation and receivers based on phase demodulation can be far from optimum. In this paper we study analytically the optimum asymptotic performance of CE-OFDM schemes. It is shown that the optimum performance of CE-OFDM can be substantially better than the performance of ideal linear OFDM schemes, especially for frequency-selective channels.
publishDate 2016
dc.date.none.fl_str_mv 2016-07-01T00:00:00Z
2016-07
2017-06-14T14:44:03Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/11144/3080
url http://hdl.handle.net/11144/3080
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 978-1-4673-8409-4
978-1-4673-8408-7
978-1-4673-8410-0
10.1109/TEMU.2016.7551924
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE
publisher.none.fl_str_mv IEEE
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833597605751291904

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