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Analysis of optical access networks in the Czech Republic
Štefančík, Matej ; Šifta, Radim (referee) ; Münster, Petr (advisor)
The work provides an introduction to optical access networks. Describes the basic functional units, the architecture of these networks, defines the basic network elements. Discusses various construction technologies from classic to modern. The next chapter analyzes optical access networks in the Czech republic. Focused on actual status of these networks, based on statistical data. An important part is the future direction of development over the next few years. The new trends and ideas that appear in this field. At the end of the chapter was summarized anonymous survey conducted through a questionnaire sent to the owner of the optical access networks, the output of which were the parameters of the networks. All collected data served as a source for design creation of the standard variants of optical access networks along with the technical specifications and financial balances. For individual network designs were developed models in the simulation environment used for the analysis. The last chapter briefly compared strengths and weaknesses of created variants of the optical access networks.
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Application of the new technologies in optical access networks
Ryšavý, Jan ; Münster, Petr (referee) ; Šifta, Radim (advisor)
The aim of the thesis is get theoretical knowledge of the latest components used in optical access networks and subsequently get knowledge practical experience in design and simulation of these networks. The thesis is divided in two different parts. In the first part of this work are given theoretical knowledge AWG multiplexers and other modern elements used in optical access networks. The second part deals with the design and simulation of optical access networks using wavelength and time division.
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Design of an optical access network
Kučera, Jan ; Filka, Miloslav (referee) ; Münster, Petr (advisor)
Bachelor Thesis deals with the optical access network, mostly with the passive ones. It aims for current trends of users connecting to the optical access network by using FTTx connections, moreover the thesis aims on DOCSIS technology and G.Fast. Due to a focus on DOCSIS and G.Fast metallic elements are discussed too. In the practical part of bachelor thesis the theoretical knowledge in solving of access optical networks are applied. The proposal involves the technical solution of the building optical access networks, technology, attenuators balance and calculation of network. Thereafter there is discussed the simulation of the proposed project, verification of the correctness of the proposal and its evaluation.
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Design of optical access networks
Nguyen, Filip ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
The aim of this paper is to outline the problems of the design of optical access networks. In the first Rasta work is generally described problems optickcýh GPON network GEPON. The second part deals with the optical network elements, such as HDPE ducts, fiber optic cables, optical splitters and the like. The third part is devoted to legislative operation of electronic communications, especially the work is focused on the rights and obligations of providers elektronickcýh communications. It is also in this part of the studied issues of territorial management in the design of optical access networks. In the last part was designed optical network, for which the development of model documentation to obtain zoning and accompanying technical report, including drawings. The proposed network was prepared in the lab of optical networks and were made to her measurements CD, PMD, OTDR measurement and direct method.
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Optical amplifiers and their applications
Dvořák, Tomáš ; Havliš, Ondřej (referee) ; Münster, Petr (advisor)
The main purpose of this diploma thesis is to study of possibilities of optical amplification, ways of realization optical amplifiers and construction of operational EDFA amplifier . According to gained information and knowledge about optical amplifiers, the basic configuration of EDFA amplifier with posibility of connecting up to two EDFA modules, which uses erbium-dopped fibers for amplification, was made. There was also developed a 3D model of front control panel of the amplifier and placement of particullar items was planned. Next step was the construction of EDFA amplifier device and measuring of its parameters and features.
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Solution deployment of DWDM systems 100G and 400G
Grenar, David ; Münster, Petr (referee) ; Filka, Miloslav (advisor)
The aim of this master´s thesis is an explanation of the problem of transport optical networks with Dense Wavelength Division Multiplexing. DWDM principle, properties and limit of transmission system. Focus of thesis is also specification properties of migration transmission system to higher speed 40G, 100G and in future to 400G. Part of thesis is outlined the basic division of multiplexing system, there are discussed the basic solutions of wavelength multiplexes CWDM and DWDM, focus for the effects of nonlinear phenomena and parasitic modulation FWM, SPM and XPM in modulation DP-QPSK and 16-QAM. In practicle part we will make measurement of properties of 10G and then experimental measurement parameters on 100G.
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Real bandwidth devices operating on 802.11n
Vágner, Adam ; Reichert, Pavel (referee) ; Münster, Petr (advisor)
Wifi and any other recent wireless technology works in case of correct use. Simultaneously for huge density of wireless networks today is knowledge of this matters necessity. This project is generally about 802.11x standards and focused to 802.11n standard, topologies and implementations of MIMO in advance. Practical part represents measure simulations and few devices demonstrates real radio parameters. Then devices are tested to data efficiency and ping response in ideal environment and also under signal noise present environment. All measured values are compared in tables and graphs separately. Every event contains word rank.
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The audit methology of optical networks
Štěpán, Petr ; Münster, Petr (referee) ; Reichert, Pavel (advisor)
This work deals with summary of optical system audit in the terms of all layer of the reference model ISO/OSI. Introduction of the work focuses on exploring issues of management networks control, the description of ISO/OSI model and explanation of the terms QoS and SLAs. The description of the optical fiber transmission follows after that. The characteristics of the waveguide and optical communication system components with regard to its reliable operation and management are analyzed. Some major types of optical networks are described. Following section contains a description of methods used in the audit, further the methods for measuring physical, connection and network layer of the reference model are discussed more thoroughly. The work also contains a partial analysis of the audit of the physical layer of the selected section of the Brno academic network optical line. Of all these methods for networks control the final audit report for the optical network with selected limits is compiled as a conclusion of the work.
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Implementation of Asterisk VoIP PBX
Schön, Martin ; Münster, Petr (referee) ; Szőcs, Juraj (advisor)
The thesis is divided into two parts, theoretical and practical. In theory, it analyzed the signaling protocols, the RTP protocol for data transmission, VoIP Asterisk PBX and security options. The practical part describes the installation of the Asterisk PBX, conducted demonstration call forwarding. PBX was associated with an LDAP directory server to manage users and ejabberd for text messaging protocol XMPP. It was configured translation SIP-Skype using the SiSky Gateway and with dialplan SIP-H.323 translation. The study was to develop Dialplan with IVR. It was measured bandwidth of the audio/video codecs in an encrypted/unencrypted connections.
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Switches for FTTx - deployment in networks with IPTV
Horváth, Tomáš ; Reichert, Pavel (referee) ; Münster, Petr (advisor)
The aim of this paper was to acknowledge ourselves with the switches which can be used in the networks based on FTTx. The first chapter deals with the IPTV service, its advantages, disadvantages and provided services. In the following chapter, optical fibres and the possibilities of their termination are discussed - FTTH, FTTC, FTTB, FTTO, FTTP and FTTN. The next part involves the methods of broadcasting and more detailed analysis of multicast addresses including defined range and multicast distributional trees. The conclusion of the theoretical analysis of this paper is formed by the explanation of all 3 versions of the IGMP record and the division of switchers through the signals transmitted. In the practical part, the suggestion of testing these switchers is carried out. The first method represents testing through one video file in various resolutions. Another possibility of testing is based on the first method, nevertheless, with the difference that the testing is done in two streams and each one of them has a different data flow. The purpose of the last testing is to demonstrate the fact that the video flow is transmitted through multicast, not every single flow from a server to a client separately. The connection between switchers was reduced to 10 Mb/s and the chosen video file runs at these average transmission data.
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