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Optical switching and traffic grooming
Foldyna, Petr ; Havliš, Ondřej (referee) ; Horváth, Tomáš (advisor)
This bachelor thesis is about problematics of optimalization wavelenght usage in optical networks. First part theoreticaly explains optical networks and problems when using them, switching in optical networks and traffic grooming. In second part mathematical equations of given problems are realized and also simulations using GLPK are realized. From results of simulation resolutions are given and usage of methods in real networks is explained.
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Media Converters and Optical Switches
Branč, Martin ; Reichert, Pavel (referee) ; Münster, Petr (advisor)
This Master´s thesis provides an overview of wired networks, its parameters, used standards and the deployment possibilities. Moreover, it includes the overall overview about optical networks, its parameters, maximum bandwidth, reachable distances as well as the advantages and disadvantages in comparition with wired networks. The project describes network elements which are used in the optical access network such as media convertors, optical switches etc. The practical part includes results of testing of the network devices in various scenarios. To get a comparable result, the real throughput, the power of each device and compatibility of devices from different producers were measured. At the end I have suggested few scenarios with the usage of optical switches and media convertors for extension of the current optical network. The calculation of costs for building and operation of the network is also included.
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Optical Amplifiers
Mlejnek, Zbyněk ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
Optical amplifiers has sparked a revolution in the telecommunications industry during th last ten years. Optical amplifiers are devices that amplifies an optical signal directly, without the need to first convert it to an electrical signal. Its ability to provide low-noise amplification over a range of wavelengths, fortuitously correspoding to the low-loss of silica fiber, has made optical networks economically attractive
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Building and use of small business networks
Štross, Pavel ; Pinkas, Otakar (advisor) ; Šmejkal, Ivo (referee)
The purpose of this thesis is to analyze and describe local computer network in village Přílepy u Rakovníka and to present design of modification of current network to FTTH optical access network. At first, reader is introduced into basic concepts of computer networks, afterwards comes the pratical parts which is describing the FTHH optical acces network design itself. Theory part describes basic computer network concepts such as topologies, network models and network protocols. Afterwards the text describes basic characteristics of metal and optical Ethernet networks as well as their security. Afterwards the text describes FTTx optical access networks including their architecture. Reader is also introduced into methods of usage of optical fibers and methods of their installation. In the following practical part is described current state of the network in village Přílepy u Rakovníka and the design of network modification into FTTH network. All the concepts described through chapters 1-4 are assumed to be known to the reader and are crucial for understanding of the final network design which should be implemented in the future. The final network design includes comparation of topology and architecture of the network, its active components, central server etc. The main accent is not only on the technical facts but also on the comparison of investments and financial potencial of village.
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