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Internet Connection variants using present TV cable wiring
Lukáč, Michal ; Martinásek, Zdeněk (referee) ; Stančík, Peter (advisor)
This dissertation examines data transfers along the existing lines of cable TV. PLC equipment has been selected as the focus of this examination. The essay examines the question of Multicarrier modulation and focuses more specifically onto the problem of OFDM modulation, which is being used by the selected equipment. It further describes the process of integration of PLC equipment into the cable TV network, modifications of the CATV and the basic topology of the created data networks. The essay also offers a closer look onto a PLC modem and Head End from Corinex that have been used in the implementation of a data network in a selected rural settlement. The author has also raised the issue of the problems connected with cable wires connected with this particular type of data transfers and the solutions of some of the encountered problems. The characteristics of this network have then been measured during normal operation of the created network. Measurements have been carried out in order to determine the transfer speed on a physical and transfer level, the SNR of specific connections and the signal attenuation. The measurements have confirmed the suitability of the used PLC equipment for the purposes of data transfer along the cable TV lines as far as data speed and signal strength was concerned. A map of the particular cable TV lines and the PLC equipment has been included in the attachment.
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Information System for Fair User Policy Management
Oberreiter, Vladimír ; Žádník, Martin (referee) ; Tobola, Jiří (advisor)
The aim of this bachelor's thesis is the implementation of information system for administration of Fair User Policy. This system can monitor internet traffic of each customer, set adequate types of pricelists according to the customer behaviour, apply different regulations if any limit violation will occur and inform the customer about processes and crossed limits etc. The information about download and upload data is got by the technology NetFlow.
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Internet Connection variants using present TV cable wiring
Lukáč, Michal ; Martinásek, Zdeněk (referee) ; Stančík, Peter (advisor)
This dissertation examines data transfers along the existing lines of cable TV. PLC equipment has been selected as the focus of this examination. The essay examines the question of Multicarrier modulation and focuses more specifically onto the problem of OFDM modulation, which is being used by the selected equipment. It further describes the process of integration of PLC equipment into the cable TV network, modifications of the CATV and the basic topology of the created data networks. The essay also offers a closer look onto a PLC modem and Head End from Corinex that have been used in the implementation of a data network in a selected rural settlement. The author has also raised the issue of the problems connected with cable wires connected with this particular type of data transfers and the solutions of some of the encountered problems. The characteristics of this network have then been measured during normal operation of the created network. Measurements have been carried out in order to determine the transfer speed on a physical and transfer level, the SNR of specific connections and the signal attenuation. The measurements have confirmed the suitability of the used PLC equipment for the purposes of data transfer along the cable TV lines as far as data speed and signal strength was concerned. A map of the particular cable TV lines and the PLC equipment has been included in the attachment.
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Direct selling
Tuček, Martin ; Khelerová, Vladimíra (advisor)
Theoretical section defines the concept of direct selling, describes its history and current development in the world and in the Czech Republic. It further addresses its advantages and organizations which determine international rules and ethical standards of direct selling. The practical part focuses on direct selling of telecommunications services. First, it analyzes development of telecommunication market in years 2007-2011. Based on this analysis, it presents strategy of building a data network of local Internet service provider PJcomp Ltd. in the same period. It describes pricing and practices in direct selling of internet connection. It further addresses the negotiating tactics towards residential houses, developers and suppliers of IT services. The conclusion is based on SWOT analysis and proposes a new corporate strategy.
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Seniors and Computers - computer choice criteria, possibilities of usage, health hazard
Maček, Lukáš ; Benáčanová, Helena (advisor) ; Řezníček, Dušan (referee)
This bachelor thesis is intended mainly for elderly people, who have no or minimal experiences with computers. The first part is focused on computer and internet connection choice and analyses current situation on the market. The author warns of problems that are linked to the choice of hardware, software and internet connection. In the second part are introduced chosen internet services, which could be useful for beginners. The third part deals with health hazards that are connected to the using of computers.
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Use of multicriteria decision methods for selecting internet connection at home
Sova, Ondřej ; Kuncová, Martina (advisor) ; Šindelářová, Irena (referee)
Thesis deals with use of multicriteria decision methods for selecting internet connection at home with territorial focus on Prague. Teoretical part deals with brief description of technologies used, chooses appropriate providers and their tarifs, describes criterias and principles and methods of multicriteria decision. The practical part describes 3 types of model users with different preferences, which are tested at 3 selected methods of multicriteria decision. Thesis includes a comparison of results with the original values and those of adjusted and overall comparison and the conclusions drawn.
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Analysis of relevant markets in electronic communications
Kopečná, Irena ; Zajíček, Miroslav (advisor) ; Císař, Jan (referee)
Cílem této bakalářské práce je provést zhodnocení analýzy relevantních trhů elektronických komunikací. V úvodu bylo popsáno rozdělení trhů v oboru elektronických komunikací podle tzv. Nového Regulačního Rámce Elektronických Komunikací (NRREK). Jedná se o 18 relevantních trhů, které byly určeny Evropskou komisí. V další části analýzy je uvedena obecná definice relevantního trhu a následuje úvaha, zda je těchto 18 relevantních trhů opravdu relevantních. Úvaha se opírá o příklady na trzích připojení k internetu, trhu hlasových služeb a trhu distribuce TV signálu. Úvaha také využívá zdroje Českého telekomunikačního úřadu a Úřadu na ochranu hospodářské soutěže. Poslední část této práce přináší závěr, tedy zodpovězení otázky, zda si všech 18 relevantních trhů elektronických komunikací opravdu zaslouží přívlastek relevantní.
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