ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | INFOCOMP: Jornal de Ciência da Computação |
Texto Completo: | https://infocomp.dcc.ufla.br/index.php/infocomp/article/view/572 |
Resumo: | Telecommunications services monitoring is of paramount importance, network operators must meet the expectations of their subscribers. On wireless communications, transmitted signal may suffer different degradations in the transmission channel. In the literature, there are different models of wireless channels, among the most cited are the Rician and Rayleigh fading channel models, each one presents different characteristics of transmission. In the speech quality assessment research area, most of the works focused on wired network type degradations, using parameters as packet losses, delay and jitter; however, wireless degradation characteristics are not considered. In this context, the present paper investigate the impact of different Doppler frequency shifts (Hz) on speech communications, using the fading channel models previously mentioned, and different multipath delay profiles. Performance evaluation parameters are based on the voice quality assessment algorithms described in recommendations ITU-T P.563 and P.862. The experimental results show how the variation range of the Doppler shift is related to speech quality index. |
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INFOCOMP: Jornal de Ciência da Computação |
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ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELSTelecommunications services monitoring is of paramount importance, network operators must meet the expectations of their subscribers. On wireless communications, transmitted signal may suffer different degradations in the transmission channel. In the literature, there are different models of wireless channels, among the most cited are the Rician and Rayleigh fading channel models, each one presents different characteristics of transmission. In the speech quality assessment research area, most of the works focused on wired network type degradations, using parameters as packet losses, delay and jitter; however, wireless degradation characteristics are not considered. In this context, the present paper investigate the impact of different Doppler frequency shifts (Hz) on speech communications, using the fading channel models previously mentioned, and different multipath delay profiles. Performance evaluation parameters are based on the voice quality assessment algorithms described in recommendations ITU-T P.563 and P.862. The experimental results show how the variation range of the Doppler shift is related to speech quality index.Editora da UFLA2018-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://infocomp.dcc.ufla.br/index.php/infocomp/article/view/572INFOCOMP Journal of Computer Science; Vol. 17 No. 2 (2018): December 2018; 23-311982-33631807-4545reponame:INFOCOMP: Jornal de Ciência da Computaçãoinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://infocomp.dcc.ufla.br/index.php/infocomp/article/view/572/503Zegarra Rodriguez, DemostenesJordane da Silva, MarielleMendes Silva, Francisco JoséBrandão Junior, Luiz Carlosinfo:eu-repo/semantics/openAccess2018-12-20T16:04:08Zoai:infocomp.dcc.ufla.br:article/572Revistahttps://infocomp.dcc.ufla.br/index.php/infocompPUBhttps://infocomp.dcc.ufla.br/index.php/infocomp/oaiinfocomp@dcc.ufla.br||apfreire@dcc.ufla.br1982-33631807-4545opendoar:2024-05-21T19:54:43.392565INFOCOMP: Jornal de Ciência da Computação - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS |
title |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS |
spellingShingle |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS Zegarra Rodriguez, Demostenes |
title_short |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS |
title_full |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS |
title_fullStr |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS |
title_full_unstemmed |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS |
title_sort |
ASSESSMENT OF TRANSMITTED SPEECH SIGNAL DEGRADATIONS IN RICIAN AND RAYLEIGH CHANNEL MODELS |
author |
Zegarra Rodriguez, Demostenes |
author_facet |
Zegarra Rodriguez, Demostenes Jordane da Silva, Marielle Mendes Silva, Francisco José Brandão Junior, Luiz Carlos |
author_role |
author |
author2 |
Jordane da Silva, Marielle Mendes Silva, Francisco José Brandão Junior, Luiz Carlos |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Zegarra Rodriguez, Demostenes Jordane da Silva, Marielle Mendes Silva, Francisco José Brandão Junior, Luiz Carlos |
description |
Telecommunications services monitoring is of paramount importance, network operators must meet the expectations of their subscribers. On wireless communications, transmitted signal may suffer different degradations in the transmission channel. In the literature, there are different models of wireless channels, among the most cited are the Rician and Rayleigh fading channel models, each one presents different characteristics of transmission. In the speech quality assessment research area, most of the works focused on wired network type degradations, using parameters as packet losses, delay and jitter; however, wireless degradation characteristics are not considered. In this context, the present paper investigate the impact of different Doppler frequency shifts (Hz) on speech communications, using the fading channel models previously mentioned, and different multipath delay profiles. Performance evaluation parameters are based on the voice quality assessment algorithms described in recommendations ITU-T P.563 and P.862. The experimental results show how the variation range of the Doppler shift is related to speech quality index. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-20 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://infocomp.dcc.ufla.br/index.php/infocomp/article/view/572 |
url |
https://infocomp.dcc.ufla.br/index.php/infocomp/article/view/572 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://infocomp.dcc.ufla.br/index.php/infocomp/article/view/572/503 |
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 |
Editora da UFLA |
publisher.none.fl_str_mv |
Editora da UFLA |
dc.source.none.fl_str_mv |
INFOCOMP Journal of Computer Science; Vol. 17 No. 2 (2018): December 2018; 23-31 1982-3363 1807-4545 reponame:INFOCOMP: Jornal de Ciência da Computação instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
INFOCOMP: Jornal de Ciência da Computação |
collection |
INFOCOMP: Jornal de Ciência da Computação |
repository.name.fl_str_mv |
INFOCOMP: Jornal de Ciência da Computação - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
infocomp@dcc.ufla.br||apfreire@dcc.ufla.br |
_version_ |
1799874742177497088 |