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Trends in Access Networks
Štěpán, Petr ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
This work deals with the modern trends in FTTX, but mainly focuses on FTTH, who represents the connecting of fiber to the homes of the participants. Sum up the basic problems of communication on the optical fibre, followed by comparison with other types of access networks. Another part is the analysis of the problems of construction and a description of the optical network topologies and technologies used in FTTH. In following chapter are characterized active and passive elements forming AON and PON networks. Next part deals with the study of the most common services that can be on the optical access network to operate. They are mainly associated with the TriplePlay services. An integral part of the project is the study of management and supervision optical networks. In the main part is created real model situation where is the requirement for the creation of optical access networks with broadband of TriplePlay, followed by selection of appropriate options and detailed project with a selection of active and passive elements with economic balance.
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Optical Network Design in Revúca
Antalík, Dominik ; Jordán, Vilém (referee) ; Ondrák, Viktor (advisor)
Bachelor thesis is focused on the optical network design with a variant termination of the optical fiber in the home of end users. The technology is currently the most advanced bandwidth sufficient for reliable transmission of any kind of content. The investor is the local internet provider FERDINANDY, s.r.o. in Revúca. The optical network design is set for this city. This innovation will provide high speed connection and offers additional service options such as IPTV or VoIP for citizens of Revúca. The bachelor thesis includes a proposal route of the optical fibers, choice of active and passive equipment and economic assessment of the payback period of large investments.
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POF - Polymer optical fibers
Janovský, Marek ; Šifta, Radim (referee) ; Filka, Miloslav (advisor)
This document informs readers with polymer optical fibres (POF). The first section summarizes basic properties and differences between polymer and glass optical fibres. The second section contains list of POF types, their differences in the structure and refractive indexes. Further is described preparation of fibre surface for connector pin and connector types, which are used for POF. Next section contains usage of POF in access networks, types of access networks and FTTx network types. The document continues design of FTTH, FTTB and LAN for home application. The practical part deals with basic measurements with POF, production of coupler and measuring response at test ranges. The final section summarizes the overall findings and results.
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FTTH deployment in local networks
Horníček, Lukáš ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
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. The sixth chapter of the thesis presents custom design of the headend for reception, processing and distribution of television broadcasting. Two custom access network solutions (AON P2P and WDM PON) for the town Bystřice nad Pernštejnem are presented in the seventh chapter. Case studies include the design of the optical paths infrastructure, central office infrastructure, end-user infrastructure, CAPEX/OPEX economic analysis and basic simulation in OptSim.
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The utilization of POF in access networks
Doležal, Ondřej ; Šporik, Jan (referee) ; Filka, Miloslav (advisor)
In this work, the reader familiares with plastic optical fiber (POF). Firstly are mentioned the basics of the optical transmission. Then there are the main features and parameters POF and a historical overview, detailed description of the types of POF, their important strengths and weaknesses, comparison with glass fiber, installation, available POF connectors and procedure of measurements and a summary of key findings from the practice, including a description of existing experiments and projects. The second part focuses on the use of POF in access networks. There are described present trends in access networks, an overview of optical access networks and explaination the concept with the inclusion of POF in optical networks (FTTX). Furthermore, there are possibilities of POF fibers in segment of local networks and their readiness for advanced network services, such as IPTV. The penultimate chapter contains design test polygon and final part summarizes all findings and results of this work.
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Optical network FTTH
Horníček, Lukáš ; Dostál, Otto (referee) ; Filka, Miloslav (advisor)
The bachelor's thesis „Optical Network FTTH“ is a theoretical and practical analysis of problems of optical access networks with respect to current and prospective trends in the construction and operation of these networks. For the clearness of thesis done divided into 6 chapters. The first five chapters deal with the optical access networks at a theoretical level with a touch of practical knowledge in the academic analysis. The first chapter deals with general concepts networks FTTH and defines the reasons for their occurrence. The second thematic chapter specifies an individual topology implemented in optical networks FTTH, their advantages and disadvantages with respect to transfer capacity and the economic-competitive potential of the network. It is defined by a principled division of optical networks in the active and passive with the definition of network architectures, communication models and protocols. The individual architectures are evaluated for suitability in the deployment of networks FTTH. The third and fourth thematic chapters inform readers with the passive and active access network FTTH infrastructure. Passive infrastructure examines the method of construction used in the past decades and the latest technology microtubing that this networks concept prevailed. The fifth thematic chapter provides Triple Play services and reasons for using these services just for FTTH optical networks. The sixth chapter is a crucial element in this thesis. Results and knowledge acquired in previous chapters is applied to real network model. It is defined by imaginary the village "Fektákov" for which they are created by three case studies covering technical and economic documentation for the realization of a real access FTTH network. This allows compare the modern ways of realization network infrastructure, including central office and subscriber terminal equipment. The results of these three case studies, conclusions are drawn that highlight the strengths and weaknesses of these architectures and also suggest the quality and reliability of these networks and the expected future prospects of development. Conclusion of the thesis is an evaluation of all evidence obtained in this work reflects the author's view on current and expected future developments in optical access networks leading its optical fiber to homes or apartments of all households.
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Distribution of analog signal by optical fiber
Stiburek, Martin ; Rampl, Ivan (referee) ; Šporik, Jan (advisor)
Bachelor's thesis is focused on analog signals via optical fibers. The thesis is divided into two parts. The first part describes the various transmission paths, and compare their advantages. Further describes the optical fiber itself, particularly the negative influences in the transmission, i.e. signal attenuation and dispersion. Attention is paid to the physical elements of the optical transmission system. As the light sources, light detectors, optical amplifiers and most optical transceivers. There are selected three different types of optical transceivers and compared according to their characteristics. Conclusion the first part is devoted to fiber optic signal distribution to the customers. This technology transfer is known as FTTH (Fiber to the Home). The second part is ocuses on the practical realization of optical transmission system. It consists of two optical transceivers - transmitter optical signal and optical signal receiver. Transmission system is designed for transmitting analog television signals without a soundtrack. After construction of the system according to the proposed transfer scheme was successfully simulated using the optical cable length of 3m. However, the circuit allows for its further expansion in order to improve the reproduced signal. Circiut boards were made by using EAGLE program. The result is a functional transfer system.
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Design, implementation and measurement of passive optical network
Kužela, Jan ; Horváth, Tomáš (referee) ; Vojtěch, Josef (advisor)
The aim of this thesis is to formulate the design of optical access network in designated area. The design is focused on the physical network layer and it covers optical fibers, cable protectors and links, optical hubs, racks and active components. The thesis also docu- ments network architecture, the configuration of active components and provides results from monitoring of selected network segments. The thesis consists of the theoretical part and practical part. In the theoretical part, there is an introduction to optical networks, their configurations (FTTH, FTTB, FTTC, FTTN), relevant networking standards and technologies. The practical part of the thesis covers design proposal of a network located in Slavičín. The design reuses infrastructure and technologies of existing network. The proposed design follows FTTH architecture which has benefits of low maintenance cost and it also fulfills GPON standard.
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Partial renovation of metropolitan optical network infrastructure
Cichra, Petr ; Lávička Otakar, Mgr., MU, https://is.muni.cz/osoba?prezdivka=xlavick1 (referee) ; Novotný, Vít (advisor)
This bachelor thesis is focused on rebuilding of active metallic-optical network in locality Brno – Zábrdovice, in the streets Šámalova, Kuldova a Krokova on purely passive optical network based on xPON technology with possibility of further expansion of capacity. The partial goal is a thorough analysis of the current state and the main proposal is the solution of modernization of the existing network infrastructure into xPON and then implement this proposal. The theoretical part of the bachelor thesis describes the problems associated with these technologies with regard to current and future trends in the construction of optical networks. Furthermore, the economic intensity of the investment in this reconstruction will be evaluated.
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