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Rozprawy doktorskie na temat „OPTICAL PON NETWORK”

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Data publikacji: 11 września 2023

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1

Rad, Mohammad M. "Passive optical network (PON) monitoring using optical coding technology." Doctoral thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21923.

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Les réseaux optiques passifs (PON) semblent être la technologie gagnante et ultime du futur pour les "fibres jusqu'au domicile" ayant une haute capacité. L'écoute de contrôle de ce genre de système est nécessaire pour s'assurer un niveau de qualité de service prédéterminé pour chaque client. En outre, l'écoute de contrôle réduit considérablement les dépenses en capital et de fonctionnement (CAPEX et OPEX), tant pour le fournisseur du réseau que les clients. Alors que la capacité des PON est croissante, les gestionnaires de réseau ne disposent pas encore d'une technologie efficace et appropriée
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Havliš, Ondřej. "Pasivní optické sítě WDM-PON." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219767.

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The work deals with optical access networks, passive optical networks, especially WDM-PON. Features a modern solution to connect users to the optical access network using optical FTTx connections. Describes the different types of FTTx connections, their parameters and construction technology. Practical work is a practical application of theory for the development of various design and simulation of WDM-PON networks. Each proposal includes the construction of technical solutions optical access networks, the technology used and the balance of the reduced pricing WDM-PON network. The penultimate
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Dallal, Anas Omar. "Metodika návrhu PON sítě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218816.

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Cílem této práce je analyzovat současný stav přístupových optických sítí,a hlouběji prozkoumat PON metodiku a návrh sítě. Navrhnul jsem síť založenou na konceptu FTTH pro 90 rodinných domů ovládané z centrální stanice vzdálené 20 km. Zabýval jsem se problémy při návrhu FTTH, konkrétně pasivní optickou sítí. Dále jsem se zabýval ATM-PON a Ethernet PON (EPON), které jsou založeny na společné síťové architektuře, PON, ale používají jiné přenosové technologie na podporu integrovaných služeb a jiné protokoly. Po zadání (optimálního) síťového řešení, které se hodí pro nabídku Triple-Play služeb. Dál
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Mikauš, Jiří. "Návrh a simulace optické přístupové sítě typu PON." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219444.

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The aim of master's thesis was to demonstrate chosen PON network in simulation software OPNET Modeler. The work deals with passive optical networks. In particular, solutions that are based on the transmission of Ethernet frames. EPON and 10GEPON standards are described in theoretical section. EPON Standard was introduced already in 2004. Newer 10GEOPN is back compatible, which is ideal as a suitable solution for modern network with a high data rates demands. The practical part describes process of developing network nodes for passive optical network. EPON model was developed in simulation tool
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Bobkovič, Peter. "Širokopásmová FTTx přípojka na architektuře WDM - PON." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218328.

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This masters thesis is focusing on the issue of passive optic access networks. It is dealing with the limiting factors for broadband connections, especially attenuation of fibre optics and dispersion. It is also dealing with most commonly used standards of passive optic networks. It clarifies the issue of wavelength-division multiplexing, its advantages and disadvantages, used standards, various types of components for the WDM-networks, their characteristics, application etc. In the practical part of the work you can find the measuring and diagnostics of the passive optic network EPON. It cont
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Carvalho, Maurício Moderno de. "Um novo esquema de proteção para redes PON TDM." Universidade Presbiteriana Mackenzie, 2008. http://tede.mackenzie.br/jspui/handle/tede/1494.

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Made available in DSpace on 2016-03-15T19:38:10Z (GMT). No. of bitstreams: 1 Mauricio Moderno de Carvalho.pdf: 2212181 bytes, checksum: 274e2da279304668d738afe9e3483c45 (MD5) Previous issue date: 2008-08-06<br>Fundo Mackenzie de Pesquisa<br>By adopting a ring topology and optical switches we propose a novel protection mechanism for time division multiplexed passive optical network (TDM-PON) that provides resilience against multiple network fails. Some protection schemes have been proposed in order to give resilience for passive optical network (PON) as defined at ITU-T Recommendation G983.1.
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Černý, Michal. "Optimalizace a měření parametrů PON sítě FTTx." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218961.

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Práce rozebírá současný vývoj na poli pasivních optických sítí a jednotlivé generace přenosových standardů. Podrobněji se zabývá parametry ODN, metodami jejich měření a volbou potřebných měření v praxi. Hlavní část práce je zaměřena na měření pasivního WDM prvku, kde je provedena analýza vstupů a výstupů, měření vložného útlumu a přelechů podle ORL na provozních vlnových délkách.
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8

Poudel, Sunil. "Study on Fault Detection andLocalization for Wave length Division Multiplexing Passive Optical Network." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-129299.

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Wavelength division multiplexing passive optical network (WDM-PON) can meet growing bandwidth demand in access network by providing high bandwidth to the end users. Failure in the access network is becoming critical as a large volume of traffic might be affected. Therefore, an effective supervision mechanism to detect and localize the fault is required to shorten the service interruption time. Meanwhile, open access provides a certain freedom for end users to choose the service and hence boosts competition among service/network providers. On the other hand, to offer open access in WDM-PON coul
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Takeuti, Paulo. "Projeto e dimensionamento de redes ópticas passivas (PONs)." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-22092005-205226/.

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Redes ópticas passivas são redes de acesso que utilizam fibras ópticas interligadas na topologia estrela e na configuração ponto-multiponto, sendo constituídas apenas por componentes ópticos passivos entre o terminal de linha óptica (optical line terminal - OLT) e a unidade de rede óptica (optical network unit - ONU). Como estratégia de evolução tecnológica, podem ser utilizadas para aproveitar a base instalada de cabos de cobre e cabos coaxiais na rede de acesso, servindo como cabo alimentador para uso das tecnologias digital subscriber line (DSL), cable modem e local multipoint distribution
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10

Chlápek, Jan. "Návrh nových laboratorních úloh s gigabitovou pasivní optickou sítí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-402124.

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The diploma thesis is focused on design of new laboratory exercises on the topic of gigabit passive optical networks. The theoretical analysis is devoted to acquaintance with basic problematics of PON and analysis of individual PON standards. Special attention, besides GPON, XG-PON and EPON standards, is devoted to security issues in PON. The goal of practical section of the thesis is the design of four laboratory exercises. Two exercises are focused on configuring GPON and XG-PON networks in a console environment with the help of exemplary console commands. The goal of the third exercise is t
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11

Santos, Alex Ferreira dos. "Algoritmos para alocação de banda em redes de acesso GPON." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-11032010-160905/.

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Neste trabalho propomos e analisamos algoritmos de alocação dinâmica de banda para rede óptica passiva (PON) de acesso padrão GPON (Gigabit PON). Estes algoritmos utilizam dados oriundos de SLA (service level agreement) para gerenciar a alocação de banda e classificar em 4 contêineres de tráfego (T-CONT) o tráfego gerado em 16 ONUs (optical network unit). Na transmissão upstream é utilizada a técnica de multiplexação por divisão de tempo (TDM) para gerenciar o acesso ao meio, evitando colisões. O primeiro algoritmo proposto aloca banda garantida para as ONUs e distribui a banda não utilizada d
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12

STRAULLU, STEFANO. "Next generation optical access networks towards Gigabit/s per user." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2592360.

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At the time of writing this Ph.D. thesis, FSAN (Full Service Access Network) and ITU-T (International Telecommunication Union – Telecommunication Standardization Bureau) working groups are involved in the final definition of the Recommendation G.989, which has recently established that the Next Generation Passive Optical Network (NG-PON2) architecture will be based on Time- and Wavelength-Division Multiplexed PON (TWDM-PON), and it will consist in its first version on four wavelength-stacked XG-PONs using four wavelengths per direction, likely with a very narrow (for PON) spacing of 100 GHz or
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13

Kočí, Lukáš. "Vliv velikosti rámce na dělicí poměr v pasivních optických sítích XG-PON." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220381.

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The diploma thesis deals with the theoretical definition of passive optical networks, furthermore the description of methods of channel bundling in passive optical networks and the coexistence and migration between standards. The main essence of this work is the XG-PON (10-Gigabit-capable Passive Optical Network) standard. This standard is generally defined along with a description of the physical layer. The transport layer is detailed analysis. There is a description of conditions, under which the Optical Network Unit pass through, when is activated. Additionally, this diploma thesis focuses
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14

Horníček, Lukáš. "Nasazení FTTH v lokálních sítích." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220308.

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The master’s thesis is focused on the theoretical and practical issues of optical access networks. The first chapter of the thesis deals with the concept of the access networks known as FTTx. The second and third chapters focus on the principles and standardization of the active optical network AON P2P and the passive optical network TDM PON. The fourth chapter of the thesis focuses on the network WDM PON, wavelength multiplexes, solution concept and the LG-Ericsson EA 1100 platform. The fifth chapter of the thesis deals with the infrastructure of the optical paths for optical access networks.
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15

Frank, Florian. "Hybrid analogue & digital access network architectures for the mobile/fixe infrastructure convergence." Phd thesis, Université Paris-Est, 2011. http://tel.archives-ouvertes.fr/tel-00665650.

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In order to realize the convergence of the optical infrastructure of fixed and mobile access networks, the objective of this thesis is to study the solutions for distributing native radio carriers through typical optical access networks.The first Part describes the contexts and the main physical properties of the optical and radio access networks: from nowadays deployed Fiber To The Home (FTTH) systems, and their expected evolutions, to the current radio system Universal Mobile Telecommunications System (UMTS) towards the expected requirements of modern mobile radio systems. This allows to set
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16

Celino, Daniel Ricardo. "Proposta e análise de redes WDM-PON empregando auto-alimentação e dupla cavidade óptica." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-22092017-093305/.

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Nas topologias de redes WDM-PON (Wavelength Division Multiplexed Passive Optical Network) baseadas em transmissores colorless, isto é, transmissores que possam operar em uma grande gama de comprimentos de onda, que empreguem técnica de auto-alimentação e reuso de comprimento de onda, tem despertado grande interesse devido a sua comprovada eficiência, granularidade e custo reduzido em relação às alternativas. Entretanto, o alcance destas redes é limitado pelo emprego de remodulação, devido a dependência existente com a qualidade dos sinais a serem remodulados. Neste cenário, mantendo-se uma mel
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17

Junior, José Valdemir dos Reis. "Modelagem de redes CDMA-PON baseadas em técnicas de cancelamento paralelo e códigos corretores de erros." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-14122009-105507/.

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A oferta de novos serviços para os usuários finais, como o denominado triple play, que consiste no tráfego simultâneo de voz, vídeo e dados utilizando a mesma infra-estrutura de comunicação, vem exigindo que as estruturas de rede das operadoras ofereçam largura de banda adequada e qualidade de serviço. Nesse contexto, as redes ópticas passivas (PON) vêm se destacando em virtude de oferecerem maior largura de banda a custos relativamente baixos. Nas redes ópticas passivas, trechos de fibras ópticas podem ser compartilhados entre diversos assinantes, exigindo, para isso, a utilização de técnicas
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Júnior, José Valdemir dos Reis. "Sistemas inteligentes aplicados às redes ópticas passivas com acesso múltiplo por divisão de código OCDMA-PON." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-04082016-142530/.

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As redes ópticas passivas (PON), em virtude da oferta de maior largura de banda a custos relativamente baixos, vêm se destacando como possível candidata para suprir a demanda dos novos serviços como, tráfego de voz, vídeo, dados e de serviços móveis, exigidos pelos usuários finais. Uma importante candidata, para realizar o controle de acesso nas PONs, é a técnica de acesso múltiplo por divisão de código óptico (OCDMA), por apresentar características relevantes, como maior segurança e capacidade flexível sob demanda. No entanto, agentes físicos externos, como as variações de temperatura ambient
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Turna, Ozgur Can. "Bandwidth allocation and energy efficiency solutions in optical access networks." Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0005/document.

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Dans ce travail de thèse, un aperçu général sur les systèmes PON est présenté et sont étudiés les mécanismes et classification PON existants. Après, nous introduisons notre première contribution qui est un algorithme d'allocation dynamique de bande passante pour EPON. Cet algorithme proposé est désigné comme «hcDBA». Par la suite, une amélioration de l'algorithme de hcDBA avec mécanisme de prédiction précoce est présentée. Notre simulation montre bien que notre algorithme hcDBA est performant comparé aux mécanismes existants en termes de taux de perte de paquets et de délai d’accès. Dans notre
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20

Chang, Ching-Hung. "Dynamic bandwidth allocation MAC protocols for gigabit-capable passive optical networks." Thesis, University of Hertfordshire, 2008. http://hdl.handle.net/2299/2452.

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The research initiatives addressed in this thesis are geared towards improving the performance of passive optical networks (PONs) through the development of advanced dynamic bandwidth allocation (DBA) protocols. In particular, the aim of the research undertaken is to enhance the quality of service (QoS) offered by standard PONs by means of providing subscribers with service level agreement (SLA) to fulfil applications and associated bandwidth requirements on demand. To accomplish the research objectives, a novel service and bandwidth focused DBA protocol is developed for standard time division
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Sikora, Pavel. "Vliv dynamického přidělování šířky pásma na koncové jednotky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376996.

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This thesis deals with DBA algorithms used in XG-PON networks. It describes reference appearance of the DBA algorithm, as well as, three specific DBA algorithms discussed in professional articles. Particularly speaking about GIANT, HYRA and modified Max-Min Fair DBA. The thesis provides description of frames utilized by DBA algorithms in XG-PON networks, specifically XGEM frame and XGTC frames. The thesis also presents a simulation tester of DBA algorithms tested on a virtual XG-PON network. Finally, it contains the results of testing these DBA algorithms with a description.
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Dourado, Diego Marques. "Estratégias para aumento da eficiência espectral e energética em redes TWDM-PON." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-11092017-113611/.

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O problema estudado relaciona-se ao planejamento de redes ópticas de acesso TWDM (Time and Wavelength Division Multiplexing), tendo como meta prover meios para atender ao consumo crescente de banda e, ao mesmo tempo, associar o mesmo ao menor consumo de energia possível e disponibilizar serviços de qualidade aos usuários da rede. Neste contexto, após a apresentação de uma revisão bibliográfica, alguns trabalhos foram selecionados como referências base para o estudo. Neste, foram analisadas técnicas de gerenciamento do comprimento de onda numa possível migração tecnológica dos equipamentos de a
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23

Horváth, Tomáš. "Optimalizace služeb v optických přístupových sítích FTTx." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-320777.

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This thesis deals with an optimization of Triple play services and security in optical access networks. The first chapter provides theory basics which are necessary for results evaluation. The second chapter describes optical access networks with their parameters such as transmission speed, split ratio, line code, bit error rate etc. defined by ITU. Next chapter summaries the current state in optical networks construction field according to the European Union developing plan. The practical part of this thesis is divided into several subchapters. The significant part of the thesis is dedicated
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Matušík, Lukáš. "Technologie datových přenosů v optických přístupových sítích FTTx." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218199.

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The objective of diploma thesis is describe problems connected with designed of FTTX networks and bring the reader problems of data transmission in optical acces networks the type of PON. In the introduction are mentinoned individual technologies that already operate, and there are describe advantages disadvantages of the use topology point-to-point and point-to-multipoint. In the following chapters are dealt with problems with data broadcasting in the direction from final participant. In the other part of diploma thesis are described elements, that were used for the proposed transmission rout
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CABALLERO, DIEGO RODRIGO VILLAFANI. "WDM-PON PASSIVE OPTICAL NETWORKS MONITORING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2013. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=23359@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>As redes ópticas passivas de nova geração 2 (NG-PON2) estão estudando e considerando o WDM-PON (Wavelength-Division-Multiplexed Passive Optical Networks) como a nova arquitetura para as redes de acesso, é provável que esta arquitetura seja adotada num futuro como o padrão. No entanto, algumas instalações já foram realizadas em todo o mundo, a maior parte delas na Coréia do Sul.
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Doležal, Ondřej. "Experimentální práce s POF - polymerová optická vlákna." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220395.

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In this diploma thesis, the reader is familiarized with polymer optical fiber (POF). Firstly is mentioned theoretical background of optical fibers and optical transmission. The following are the basic properties and significant parameters of POF, a more detailed description of each type POF and their essential advantages and disadvantages in comparison with established optical fibers based on glass. The next chapter describes the area of practical issues: working with fibers and fiber installation, as well as the available connectors and methods of measurement of POF. Closely are analyzed know
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Ferreira, Marco Paulo Flores. "Reconfigurable nodes for passive optical networks (PON)." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/2095.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>Recentemente , as redes ópticas de nova geração têm sido motivo de acesa discussão nos meios científicos. Com o aumento verificado nos últimos anos do numero de utilizadores e o aparecimento de novos serviços disponibilizados através das redes de acesso, torna-se cada vez mais claro que a fibra óptica é a única solução para disponibilizar a largura de banda necessária. Neste trabalho é apresentado um novo método passivo capaz de aumentar os níveis de escalabilidade e reconfigurabilidade destas redes. O método consiste no controlo da quan
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Alves, Andreia Juliana. "Next generation passive optical networks (NG-PON)." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/4473.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>As redes ópticas passivas (PONs) prometem satisfazer os requisitos dos utilizadores e provedores de serviços de forma a obter débitos mais elevados, quando comparados com as tecnologias baseadas em cobre. Com este trabalho pretende-se estudar e apresentar as tecnologias PON correntes actualmente, as suas características principais e alguma interpretação de como estas conseguem satisfazer os requisitos impostos. Vários standards para PON têm vindo a ser desenvolvidos ao longo dos anos e, considerando que a necessidade de melhores caracte
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Coelho, Sérgio António da Costa. "Tuning mechanisms in optical access networks." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18506.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>O principal tema abordado neste trabalho e a tecnologia a ser utilizada em redes passivas oticas de nova gera c~ao, nomeadamente o TWDM e o PtP WDM, com um foco em especial nos mecanismos de tunabilidade a ser usados nas arquiteturas de rede mencionadas. Come cou por ser feita uma abordagem geral ao tema, um "overview" a recomenda c~ao para o NG-PON2 e apresentada, assim como uma revis~ao a transceivers incolores, componentes essenciais nas arquitecturas do NG-PON2. Tendo em conta o n vel de precis~ao apresentada, tr^es tipos
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30

Milosavljevic, Milos. "Integrated wireless-PON access network architectures." Thesis, University of Hertfordshire, 2011. http://hdl.handle.net/2299/6371.

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Next generation access networks should be able to cultivate the ongoing evolution in services and applications. Advancements on that front are expected to exhibit the transformation of high definition television (HDTV) and 2D services into ultra-HDTV and individual interactive 3D services. Currently deployed passive optical networks (PONs) have been certified to be able to deliver high quality video and internet services while in parallel broadband wireless standards are increasing their spectral efficiency and subscriber utilisation. Exploiting the benefits of both by providing an integrated
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31

Mansouri, Rad Mohammad. "Passive Optical Network (POM) Monitoring using Optical Coding Technology." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/26923/26923.pdf.

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32

Zhu, Min. "Research on key techniques in passive optical networks and optical grid applications." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2012. http://tel.archives-ouvertes.fr/tel-00907280.

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The bandwidth-intensive applications, such as interactive video and multimedia services, have further increased the demand of bandwidth. Thus wavelength division multiplexing passive optical network (WDM-PON) is viewed as a promising candidate to realize the next generation optical access networks due to its dedicated bandwidth for each subscriber and more flexible bandwidth management. The first half of this thesis will cover three technologies in a WDM-PON, including multicast overlay scheme, automatic protection switching scheme and tunable Fabry-Pérot laser diode (FP-LD) self-seeding schem
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33

Bogdanski, Jan. "Experimental multiuser secure quantum communications." Doctoral thesis, Stockholms universitet, Fysikum, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-26498.

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We are currently experiencing a rapid development of quantum information, a new branch of science, being an interdisciplinary of quantum physics, information theory, telecommunications, computer science, and many others. This new science branch was born in the middle of the eighties, developed rapidly during the nineties, and in the current decade has brought a technological breakthrough in creating secure quantum key distribution (QKD), quantum secret sharing, and exciting promises in diverse technological fields. Recent QKD experiments have achieved high rate QKD at 200 km distance in optica
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34

Paredes, Bruna Patrícia Rodrigues. "Contexts requirements in new generation access networks." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/17387.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>A Internet está a ter um papel cada vez mais activo no quotidiano actual. As exigências de tráfego estão a aumentar consideravelmente mais do que a receita disponivel, sendo que se torna visível a extrema necessidade por servicos de banda larga. Recentemente, os operadores de telecomunicações tem demonstrado um vasto interesse em providenciar serviços a clientes residenciais, usando Redes Ópticas Passivas (PON). Este forte investimento levou ao desenvolvimento de vários standards, estando actualmente a ser desenvolvida a nova ger
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Maamoun, Khaled M. "Deploying Monitoring Trails for Fault Localization in All-optical Networks and Radio-over-Fiber Passive Optical Networks." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23195.

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Fault localization is the process of realizing the true source of a failure from a set of collected failure notifications. Isolating failure recovery within the network optical domain is necessary to resolve alarm storm problems. The introduction of the monitoring trail (m-trail) has been proven to deliver better performance by employing monitoring resources in a form of optical trails - a monitoring framework that generalizes all the previously reported counterparts. In this dissertation, the m-trail design is explored and a focus is given to the analysis on using m-trails with established li
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Яковенко, Ю. М. "Проект мережі широкосмугового доступу з використанням PON-технології у м. Суми". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/76525.

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Розраховано оптичний бюджет та на основі цих розрахунків розроблено схему розварювання ВОЛЗ та побудовано план мережі PON. Розроблено програмне забезпечення, що дозволяє розрахувати згасання в PON-мережі для кожного елементу окрему та в цілому на лінії.
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Cardoso, Rodrigo Alves 1986. "Proposta, simulação e testes de arquitetura para redes ópticas passivas GPON e XG-PON." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258924.

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Orientador: Edson Moschim<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-27T23:28:40Z (GMT). No. of bitstreams: 1 Cardoso_RodrigoAlves_M.pdf: 10022519 bytes, checksum: 6cc7c615004e4ecdf7f5acc095cd2d2f (MD5) Previous issue date: 2015<br>Resumo: O objetivo deste trabalho foi propor uma arquitetura de rede óptica passiva (PON) capaz de suportar um sistema GPON e permitir a evolução para redes PON de nova geração, ou XG-PON, de maneira que ambas as tecnologias possam coexistir na mesma infraes
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Zorgani, Nagib Youssef. "The Design of FTTH Network." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-221007.

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The aim of this thesis is to explain the problems of optical access networks with wavelength division multiplexers, main purpose is to demonstrate the difference between theoretical and real measurement. The work is divided into several thematic areas. The introduction outlines the basic of telecommunications, fiber optics lasers, single mode, multimode, lasers fibers cables & cores, splitters division multiplexing system, there are known solutions discussed fundamental wavelength multiplexes and their possible combinations. The following chapter deals with the active elements such as AON, PON
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Silva, Rui Miguel Horta Coelho da. "WDM-PON architecture with centralized generation of optical multi-carriers." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14571.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>The rapid growth of the telecommunications area and the increasing demand for bandwidth by users has led to the need of develop the Wavelength-division multiplexed passive optical network (WDM-PON) architecture, which can increase the bandwidth of the existing network without the necessity of installing new fiber . A key technique for the high capacity WDM-PON networks is the generation of optical multi-carriers. This technique is the main focus point of this dissertation, which begins to look at the generation of optical multi-car
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Bento, Susana Gonçalves. "Transceivers for TWDM-PON." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14570.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>In recent years, Internet has been assuming a fundamental role in everyday life. Traffic demands are increasing in such a way that the available technologies will presumably no longer satisfy the raised requirements. For the last years, operators have expressed a clear interest in the implementation and development of Passive Optical Network (PON) to provide several services and applications to a high flow rate per client. Comparing to other access technologies, PON is very attractive mainly due to reduction of maintenance and to t
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Raddo, Thiago Roberto. "Proposal of a new approach for BER evaluation of multirate, multiservice OCDMA systems." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-16102012-105005/.

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The continuous evolution of the optical communication technology in the last few years has allowed the growing users demand for higher bandwidth to be satisfactorily attended. This new demand is mainly attributed to the growing popularity of bandwidth-intensive networking applications, such as Internet protocol television (IPTV), high-definition television (HDTV), e-learning, e-health, super high-definition (SHD) class digital movies, and e-culture based on 3-D full-HD video. These applications will eventually require differentiated service types and diversified data rates. As a result, capabi
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Pereira, Flavio de Melo. "Modelagem, policiamento e escalonamento em redes Ethernet PON." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260703.

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Orientadores: Dalton Soares Arantes, Nelson Luis Saldanha da Fonseca<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-07T07:59:05Z (GMT). No. of bitstreams: 1 Pereira_FlaviodeMelo_D.pdf: 3025086 bytes, checksum: 2baf4e2cf83a53c366092610c84e1bdc (MD5) Previous issue date: 2006<br>Resumo: Neste trabalho, apresentamos uma nova proposta de modelagem, policiamento e escalonamento de tráfego em redes Ethernet com elementos ápticos passivos. Esta proposta visa ao suporte a garantias de desempenho individ
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Paiva, Getúlio Eduardo Rodrigues de. "Estudo de esquemas de amplificação para redes PON de longo alcance." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-07052012-095117/.

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O surgimento de novos serviços que requerem uma largura de banda cada vez maior, bem como o crescente número de usuários de tais serviços, têm introduzido desafios às empresas operadoras de telecomunicações em sua capacidade de atender a estas demandas sem perda apreciável da qualidade de serviço e mantendo, ainda assim, os custos num nível aceitável pelos usuários. Neste contexto, redes ópticas passivas (PONs) vêm atraindo grande interesse em anos recentes. Na sua variante de longo-alcance, as redes PON permitem uma consolidação do uso dos equipamentos e centrais de serviço requeridos, reduzi
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44

Simon, Gaël. "Introduction des technologies de multiplexage en longueur d'onde dense dans les futures générations de réseaux d'accès optique." Thesis, Paris, ENST, 2016. http://www.theses.fr/2016ENST0076/document.

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Initialement poussées par le marché résidentiel, les évolutions du réseau d’accès optique sont aujourd’hui également stimulées par l’expansion du réseau mobile. Comme le montre le premier chapitre de ce document, l’introduction d’un multiplexage en longueur d’onde dense constitue l’une des solutions privilégiées pour permettre la montée en débit dans les réseaux d’accès optique. Dans cette thèse, l’impact de l’introduction du multiplexage en longueur d’onde dense est étudié sous trois axes :• Une prochaine étape de l’évolution des technologies pour les réseaux d’accès passerait par une hybrida
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Khan, Rameez Ahmed. "Analysis of the performance of Hybrid TWDM Passive OpticalNetworks (NG-PON2)." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-102467.

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In this study, a review of research literature has been carried out to investigate Hybrid Time and wavelength Division Multiplexing techniques with respect to reach, split ratio, and speed of the network. This was done to overcome challenges presented by Passive Optical Networks, such as the reach and the high split ratio. A comparison of different methods clarifies that Hybrid PassiveOptical Networks have a high power-budget that ensure efficient signal transmission. The Optisys software has been used to analyze the performance of the different techniques.
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46

Coelho, Ricardo Jorge Mendonça. "Optoelectronic modules for next generation optical networks." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23723.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>Nos últimos anos tem-se verificado uma clara evolução na implementação e desenvolvimento da fibra ótica até ao consumidor final. As redes Fiber-tothe- Home (FTTH) foram desenvolvidas e normalizadas em todo o mundo, no entanto, a necessidade de largura de banda pelos utilizadores e pelos novos servi cos obrigou esta tecnologia a evoluir, desde as Gigabitcapable Passive Optical Networks (GPON) e 10 Gigabit-capable Passive Optical Network (XG-PON) para a Next Generation Passive Optical Network 2 (NG-PON2), que vai começar agora a sua
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Morgado, Tiago Manuel Coelho. "Photonic integrated circuits for use in NG-PON2 networks." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18520.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>Nos dias que correm com a adoção generalizada de smartphones, conteúdos de vídeo, computação em nuvem e redes sociais, o volume de tráfego não para de aumentar. Assim, existe uma procura constante para melhorar a largura de banda das redes existentes. Neste contexto surgiu a Next Generation Passive Optical Network Phase (NG-PON) 2 a qual é um novo standard que vai permitir um aumento da largura de banda que pode chegar aos 80Gbps. O conhecimento dos requisitos do standard NG-PON 2 é importante, para que se possam produzir equipamentos qu
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Andrade, Jardín Marilet de. "Resource optimization in passive optical networks: dynamic bandwidth Allocation, Evolution, and Cost-Effective Capacity Upgrades." Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/7052.

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This thesis is a result of contributions to optimize or improve resource allocation in Passive Optical Networks (PON). The contributions are related with resource allocation during PON operation and with the upgrade process to allocate more capacity to the network in an "as-needed" fashion. We first address algorithms for Dynamic Bandwidth Allocation (DBA) in the upstream channel of Ethernet-based PONs through providing a state-of-the-art survey and proposing two algorithms. The proposed DBA results demonstrate improved performance and fairness among users. Then we introduce the problem of all
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49

Lebreton, Aurélien. "Allocation dynamique de ressources basée sur un multiplexage radio-fréquence pour les futurs réseaux d'accès optique passifs." Thesis, Lorient, 2015. http://www.theses.fr/2015LORIS381.

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Cette thèse s’inscrit dans le cadre de la montée en débit des réseaux d’accès optiques passifs. Les travaux menés durant cette thèse s’appuient sur le constat que les technologies actuelles basées sur le multiplexage temporel, arriveront à leurs limites dans les années à venir et ne pourront plus répondre à l’évolution des besoins en débit. L’étude des problèmes rencontrés lors les déploiements actuels conduit à proposer une autre forme de multiplexage plus adaptée aux débits demandés par les utilisateurs : le multiplexage fréquentiel (ou FDM/FDMA). Les travaux réalisés dans cette thèse ont po
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Guimarães, Marcelo Alves. "Transporte TDM em redes GPON." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-07042011-152547/.

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Neste trabalho analisamos e propomos a utilização de TDM (Time Division Multiplexing) nativo canalizado/estruturado em redes PON (Passive Optical Network) com padrão GPON (Gigabit Passive Optical Network), com ênfase na estrutura de transmissão do legado das redes de telefonia. O objetivo principal é obter um aumento na eficiência de banda transmitida através da fragmentação de sinais E1 sem que seja necessário o uso de técnicas de emulação de circuito (que reduzem a eficiência de banda devido à adição de cabeçalhos). Inicialmente, é descrito o transporte TDM em redes GPON, como efetuado pelos
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