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Vlastimil Clupek, Tomas Horvath, Petr Munster and Vaclav Oujezsky
Passive optical networks are currently the most promising solution for access networks. These networks rely on broadcast signal distribution in the downstream direction and unicast signal transmission in the upstream direction. The upstream direction is ...
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Tomas Horvath,Patrik Cymorek,Petr Munster,Vaclav Oujezsky,Josef Vojtech
Pág. 281 - 289
Passive optical networks are the most promising networks for the future. In 1998, the first standard of PONs was developed. Since that time, quality of optical transmissions and technologies has been massively improved and today's standards are capable o...
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Tomas Horvath,Jan Chlapek,Petr Munster,Josef Vojtech,Miloslav Filka
Pág. 258 - 263
Passive optical networks are currently the most promising solution for access networks. Increasing bandwidth requirements and big data applications need to a huge bandwidth. Nowadays, gigabit passive optical networks do not seem to be suitable for these ...
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Tomas Horvath,Petr Munster,Josef Vojtech,Ondrej Havlis,Martin Gallo
Pág. 141 - 147
Passive optical networks are the most promising solution for access networks. The first standard provided only 155 Mbit/s but current networks work according to ITU-T G.984.3 with 2.5 Gbit/s in downstream. However, NG-PON2 offers up to 40 Gbit/s in ...
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Tomas Horvath,Vaclav Oujezsky,Petr Munster,Josef Vojtech,Ondrej Havlis,Pavel Sikora
Pág. 15 - 22
Gigabit passive optical networks have been widely deployed due to the fact that the cost of their implementation is still decreasing. What is more important, we are facing theproblem with increasing demands on the transmission bandwidth. Regarding this i...
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Vaclav Oujezsky,Tomas Horvath,Vladislav Skorpil
Pág. 38 - 44
This paper addresses the issue of detecting unwanted traffic in data networks, namely the detection of botnet networks. In this paper, we focused on a time behavioral analysis, more specifically said ? lifespans of a simulated botnet netwo...
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Tomas Horvath,Radek Fujdiak,Milan Cucka,Marie Dankova,Jiri Misurec
Pág. 95 - 100
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Milan Cucka,Petr Munster,Lukas Koci,Tomas Horvath,Miloslav Filka,Josef Vojtech
Pág. 190 - 194
This article deals with the possibility of employing phase sensitive OTDR (Optical Time Domain Reflectometry) into fibers with active data transmission DWDM (Dense Wavelength Division Multiplex). Due to the low backscattered signal of phase sensitive OTD...
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Tomas Horvath,Petr Munster,Miloslav Filka
Pág. 112 - 116
Passive optical networks are widely used because of their sufficient bandwidth and low price of individual elements.Based on the European Commission, The Czech Republic ISPs have to ensure 30 Mbit/s (in existing networks) and 100 Mbit/s (in new construct...
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Michal Jurcik,Tomas Horvath
Pág. 117 - 121
The requirements of end users on the quality of Internet connection and services is forcing the Internet providersand technical community to propose and introduce new technologies which may react to this demand. The most promising solution in this regard...
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