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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.00 seconds. 
Connection simulation between master and end unit in passive optical networks
 Moravcová, Klára ; Kočí, Lukáš (referee) ; Horváth, Tomáš (advisor)
The purpose of this bachelor’s thesis is to introduce and explain the standards of passive optical networks, their way of establishing connection between master unit and end unit in a network, as well as creating a working simulation in Matlab. The first chapter of this thesis covers the description of optical networks. In the chapter, individual layers of the GPON standard by ITU-T and the EPON standard by IEEE are described. The process of an ONU unit activation towards the OLT unit of these standards is covered in detail. The thesis describes the following standards: EPON, GPON, 10G-EPON, XGPON and NG-PON2. The practical part covers the simulations of the mentioned standards, which are displayed in the form of graphs. The results are interpreted through comparison of the graphs with various input parameters (number of connected ONU units and the length of the distribution network) with a final evaluation of these results.
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Visualization communication between OLT and ONU units in NG-PON2 networks.
 Ilgner, Petr ; Jurčík, Michal (referee) ; Horváth, Tomáš (advisor)
This bachelor thesis is concerned with passive optical networks, which provide solutions of access networks and have sufficient capacity for data-intensive services. The introductory section compares technologies of access networks and evaluates their qualities and usability. The following part focuses concretely on passive optical networks and their hardware. The next section introduces the passive optical network - NG-PON2 standard. The characteristics and principles of establishing a connection between subscriber unit and provider network interface. Further, there is description of the data structures in the network, service messages system and network security options. Special attention is paid to individual operating systems in the network. The practical part represents a design and implementation of visualization software, which displays the data communication between the units of the network.
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