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Analysis of vehicular ad hoc network
Varmus, Pavol ; Mašek, Pavel (oponent) ; Kubánková, Anna (vedoucí práce)
This diploma thesis aims to study VANET (vehicular ad hoc network), to describe the theory of this networks and describe attributes of these networks and to set the starting point for practical part. Thesis includes VANETs possibilities, its signal transportation and description of routing protocols. Another goal was to familiarize program NS-3 and set up simulation models in its interface. The main output of the practical part is program which simulates vehicle movement in Brno city and set the communication module which is adapted to fulfill the most realistic transmission capabilities. Practical part is divided to two parts. The goal of the first one was to simulate basic communication in theorized unrealistic scenario and the second part was the more realistic scenario. Overall, throughout the practical part was tested a variety of attributes, such as mobility models, standards, routing protocols and other parameters that provided diversity in final results. All the results, which consisted of summary of basic transmission capabilities and reclassification of the applicability of those technologies in real world, are discussed in the summary of the simulations output.
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The modulation techniques used in WDM optical networks
Lučenič, Lukáš ; Filka, Miloslav (oponent) ; Kočí, Lukáš (vedoucí práce)
The main goal of the diploma thesis is DWDM simulation of optical network, defined by recommandation ITU-T. Optical network includes 16 communication channels with length of fiber 50 km. Each channel have to be set with bandwith 50GHz and Bit rate with minimal value 10Gbit/s. The final simulation model includes 8 types of modulation techniques. The result of the thesis is comparison modulation techniques in terms of usability of bandwith and comparison of the quality of transfer
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Optical infrastructures of 5th generation mobile networks (5G)
Jančošek, Matúš ; Münster, Petr (oponent) ; Látal, Michal (vedoucí práce)
The bachelor thesis deals with the analysis of the current state of optical networks used in telecommunications. There is an analysis of the current state of optical networks and a comparison of the last two generations of mobile networks. The main part of the work is the simulation of optical transmission. Three different types of modulations are compared, three different types of optical fibers according to the ITU-T type and four different wavelengths, which present standard and non-standard wavelengths. The second simulation is a comparison of modulations and the effect of distance on bit error rate. The results of the analyses are presented in the tables.
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Optical infrastructures of 5th generation mobile networks (5G)
Jančošek, Matúš ; Münster, Petr (oponent) ; Látal, Michal (vedoucí práce)
The bachelor thesis deals with the analysis of the current state of optical networks used in telecommunications. There is an analysis of the current state of optical networks and a comparison of the last two generations of mobile networks. The main part of the work is the simulation of optical transmission. Three different types of modulations are compared, three different types of optical fibers according to the ITU-T type and four different wavelengths, which present standard and non-standard wavelengths. The second simulation is a comparison of modulations and the effect of distance on bit error rate. The results of the analyses are presented in the tables.
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Analysis of vehicular ad hoc network
Varmus, Pavol ; Mašek, Pavel (oponent) ; Kubánková, Anna (vedoucí práce)
This diploma thesis aims to study VANET (vehicular ad hoc network), to describe the theory of this networks and describe attributes of these networks and to set the starting point for practical part. Thesis includes VANETs possibilities, its signal transportation and description of routing protocols. Another goal was to familiarize program NS-3 and set up simulation models in its interface. The main output of the practical part is program which simulates vehicle movement in Brno city and set the communication module which is adapted to fulfill the most realistic transmission capabilities. Practical part is divided to two parts. The goal of the first one was to simulate basic communication in theorized unrealistic scenario and the second part was the more realistic scenario. Overall, throughout the practical part was tested a variety of attributes, such as mobility models, standards, routing protocols and other parameters that provided diversity in final results. All the results, which consisted of summary of basic transmission capabilities and reclassification of the applicability of those technologies in real world, are discussed in the summary of the simulations output.
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|
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The modulation techniques used in WDM optical networks
Lučenič, Lukáš ; Filka, Miloslav (oponent) ; Kočí, Lukáš (vedoucí práce)
The main goal of the diploma thesis is DWDM simulation of optical network, defined by recommandation ITU-T. Optical network includes 16 communication channels with length of fiber 50 km. Each channel have to be set with bandwith 50GHz and Bit rate with minimal value 10Gbit/s. The final simulation model includes 8 types of modulation techniques. The result of the thesis is comparison modulation techniques in terms of usability of bandwith and comparison of the quality of transfer
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