Impact of physical layer impairments on multi-band metro networks
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10071/24301 |
Resumo: | The traffic increase in optical metro networks will saturate the network capacity in a near future, mainly due to new cloud and 5G services, as well as to an increasing number of network users. The use of other fiber bands, than the usual C-band, is seen as a possible near term solution, for this probable capacity crunch. In this work, a metro network horseshoe topology with nodes capable of switching both C and L-band signals is studied. In particular, we have considered for switching Cband signals, reconfigurable optical add/drop multiplexer and Filterless Drop and Waste (FD&W) node architectures, whereas for switching L-band signals, we have considered only FD&W solutions, both amplified and unamplified. An analytical formalism was developed to assess the impact of the physical layer impairments due to fiber transmission and switching node in a horseshoe network performance. Moreover, the cost and power consumption of the C-band and L-band nodes are analyzed. We concluded that in a network end of life scenario, the L-band nodes cost is 3.5 times higher than the C-band nodes, being 99% of this cost attributed to the transponders. In L-band transmission, a lightpath can cross several spans with 10 or 60 km in the amplified solution. In the unamplified solution, where frequency reuse is allowed, a lightpath consists only on a single 10 km span due to the maximum optical link budget. Considering a -20 dB crosstalk level, a 1.5 dB degradation on the optical power budget is observed. |
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Impact of physical layer impairments on multi-band metro networksASE noiseFilterless solutionsIn-band crosstalkMetro networksMultiband transmissionNon-linear interference noiseROADMRuído ASESoluções sem filtragemCrosstalk homódinoRedes metropolitanasTransmissão em multibandaInterferência não-linearThe traffic increase in optical metro networks will saturate the network capacity in a near future, mainly due to new cloud and 5G services, as well as to an increasing number of network users. The use of other fiber bands, than the usual C-band, is seen as a possible near term solution, for this probable capacity crunch. In this work, a metro network horseshoe topology with nodes capable of switching both C and L-band signals is studied. In particular, we have considered for switching Cband signals, reconfigurable optical add/drop multiplexer and Filterless Drop and Waste (FD&W) node architectures, whereas for switching L-band signals, we have considered only FD&W solutions, both amplified and unamplified. An analytical formalism was developed to assess the impact of the physical layer impairments due to fiber transmission and switching node in a horseshoe network performance. Moreover, the cost and power consumption of the C-band and L-band nodes are analyzed. We concluded that in a network end of life scenario, the L-band nodes cost is 3.5 times higher than the C-band nodes, being 99% of this cost attributed to the transponders. In L-band transmission, a lightpath can cross several spans with 10 or 60 km in the amplified solution. In the unamplified solution, where frequency reuse is allowed, a lightpath consists only on a single 10 km span due to the maximum optical link budget. Considering a -20 dB crosstalk level, a 1.5 dB degradation on the optical power budget is observed.O aumento de tráfego nas redes metropolitanas irá saturar a capacidade das redes num futuro próximo, principalmente devido aos novos serviços em nuvem e 5G, bem como ao aumento do número de utilizadores. O uso de novas bandas na fibra ótica, além da banda C, é visto como uma possível solução para responder a esse aumento de capacidade. Neste trabalho, é apresentada a topologia de rede ”horseshoe”, que contém nós com capacidade para comutar sinais nas bandas C e L. Na banda C, consideram-se as arquiteturas com multiplexadores de inserção/extração reconfiguráveis e arquiteturas sem filtragem, e na banda L, consideram-se apenas soluções sem filtragem, com e sem amplificação. São estudadas, analiticamente, as limitações físicas da transmissão na fibra e comutação dos sinais nos nós da rede ”horseshoe”. Além disso, é realizado um estudo do custo, consumo e capacidade dos nós nas bandas C e L. Num cenário de fim de vida da rede, o custo dos nós na banda L é 3.5 vezes superior aos da banda C. O custo dos transponders constitui 99% do custo final. Na banda L, o sinal pode atravessar várias secções de 10 ou 60 km na solução amplificada. Na solução não amplificada, onde existe reuso de frequência, só há uma secção de 10 km devido ao orçamento máximo de potência na ligação. Para um nível de diafonia de -20 dB, o orçamento de potência diminui 1.5 dB.2022-01-25T12:28:04Z2021-12-21T00:00:00Z2021-12-212021-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10071/24301TID:202857395engGomes, Filipa Ferreirainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:48:21Zoai:repositorio.iscte-iul.pt:10071/24301Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:23:35.279982Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Impact of physical layer impairments on multi-band metro networks |
title |
Impact of physical layer impairments on multi-band metro networks |
spellingShingle |
Impact of physical layer impairments on multi-band metro networks Gomes, Filipa Ferreira ASE noise Filterless solutions In-band crosstalk Metro networks Multiband transmission Non-linear interference noise ROADM Ruído ASE Soluções sem filtragem Crosstalk homódino Redes metropolitanas Transmissão em multibanda Interferência não-linear |
title_short |
Impact of physical layer impairments on multi-band metro networks |
title_full |
Impact of physical layer impairments on multi-band metro networks |
title_fullStr |
Impact of physical layer impairments on multi-band metro networks |
title_full_unstemmed |
Impact of physical layer impairments on multi-band metro networks |
title_sort |
Impact of physical layer impairments on multi-band metro networks |
author |
Gomes, Filipa Ferreira |
author_facet |
Gomes, Filipa Ferreira |
author_role |
author |
dc.contributor.author.fl_str_mv |
Gomes, Filipa Ferreira |
dc.subject.por.fl_str_mv |
ASE noise Filterless solutions In-band crosstalk Metro networks Multiband transmission Non-linear interference noise ROADM Ruído ASE Soluções sem filtragem Crosstalk homódino Redes metropolitanas Transmissão em multibanda Interferência não-linear |
topic |
ASE noise Filterless solutions In-band crosstalk Metro networks Multiband transmission Non-linear interference noise ROADM Ruído ASE Soluções sem filtragem Crosstalk homódino Redes metropolitanas Transmissão em multibanda Interferência não-linear |
description |
The traffic increase in optical metro networks will saturate the network capacity in a near future, mainly due to new cloud and 5G services, as well as to an increasing number of network users. The use of other fiber bands, than the usual C-band, is seen as a possible near term solution, for this probable capacity crunch. In this work, a metro network horseshoe topology with nodes capable of switching both C and L-band signals is studied. In particular, we have considered for switching Cband signals, reconfigurable optical add/drop multiplexer and Filterless Drop and Waste (FD&W) node architectures, whereas for switching L-band signals, we have considered only FD&W solutions, both amplified and unamplified. An analytical formalism was developed to assess the impact of the physical layer impairments due to fiber transmission and switching node in a horseshoe network performance. Moreover, the cost and power consumption of the C-band and L-band nodes are analyzed. We concluded that in a network end of life scenario, the L-band nodes cost is 3.5 times higher than the C-band nodes, being 99% of this cost attributed to the transponders. In L-band transmission, a lightpath can cross several spans with 10 or 60 km in the amplified solution. In the unamplified solution, where frequency reuse is allowed, a lightpath consists only on a single 10 km span due to the maximum optical link budget. Considering a -20 dB crosstalk level, a 1.5 dB degradation on the optical power budget is observed. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-21T00:00:00Z 2021-12-21 2021-11 2022-01-25T12:28:04Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10071/24301 TID:202857395 |
url |
http://hdl.handle.net/10071/24301 |
identifier_str_mv |
TID:202857395 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134798165311488 |