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QoS in IP network
Bumbál, Miroslav ; Novotný, Vít (referee) ; Růčka, Lukáš (advisor)
Master 's thesis deals about computer networks, which constitutes a global communication structure and play a very important role in today's society. The rapid development of Internet, the emergence of new multimedia applications and their increasing use of calls to the efficient functioning of the creation of such governance mechanisms of transmission, which are able to secure the required parameters. The thesis deals about the issue of quality of service (QoS) in IP networks. It presents the basic characteristics and requirements of these networks for the transmission of sensitive data by the quality of services, deals with the QoS definition, and describes the essential parameters to be followed to achieve the required quality of service in practical deployment. In addition, lists the various principles and options to ensure QoS in computer networks. Generally, it represents the Cisco 1841 router features and options to ensure quality of service in the network based on these routers. Practical thesis part provides two types of model IP networks, which were designed in order to verify the impact of service quality in real practice. Of the known methods to ensure QoS, which include a mechanism of Integrated services, Differentiated services, it focus its content about the Differentiated Services and the implementation of these in proposed network model. The last part of the work presents the results obtained by the impact of quality of service for the applications and their assessment.
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Contiki NTP Client
Luštický, Josef ; Čejka, Rudolf (referee) ; Kašpárek, Tomáš (advisor)
This BSc Thesis was performed during a study stay at the RheinMain University of Applied Sciences in Wiesbaden, Germany. The purpose of this thesis is to describe the operating system Contiki for embedded systems, NTP time synchronisation protocol and to design and implement an NTP client for the Contiki operating system.
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The realization of the data communication for application to the mobile networks
Sodomka, Lukáš ; Růčka, Lukáš (referee) ; Jelínek, Mojmír (advisor)
Thesis deals with data technology, which can be used for communication between mobile and IP networks. The aim of the project is to design data communication and the subsequent implementation of the mobile and IP networks. First of all, it made an introduction to telecommunications systems with focus on GSM. Subsequently, the work examines data provided by GSM technology standard with a focus on GPRS, which is in the other chapters discusses in more detail. The resulting communication application protocol is designed in two versions, which is achieved by the creation of an autonomous system. Communication is implemented using JAVA programming language, which created an application client, server and implemented application protocol. Client application is tested on a mobile phone with Internet connection with support for GPRS technology. Server application is installed on a PC workstation, which is assigned a public IP address, it is easily addressable from the Internet.
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Evaluation of service quality parameters in data networks
Gregor, Lukáš ; Zeman, Václav (referee) ; Novotný, Vít (advisor)
The bachelor thesis deals about the issues of IP networks. About technologies for ensuring the quality of services, that is necessary to implement in today’s IP networks, due to the large increase of data flows. The bachelor thesis is oriented especially on technologies IntServ, DiffServ, MPLS and requirements of different types of services to the qualitative parameters of data networks. The aim of practical part is to devise a laboratory exercise for measuring qualitative parameters of different services under various condition in the intermediate network. Emulation of network parameters is carried out using emulation tool WANem with GNU Linux core.
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Multimedia transmissions in IP networks
Kejík, Tomáš ; Slavíček, Karel (referee) ; Grenar, David (advisor)
The topic of the master’s thesis is "Multimedia transmissions in IP networks". The goal of the thesis was to perform a theoretical analysis of multimedia transmissions in IP networks and to create a basic test set for generating and measuring network traffic. The theoretical part is devoted to the basic types of IP video transmission and the methods of transmitting in IP networks. Furthermore, protocols for controlling or distributing multimedia content are described. The practical part deals with creating the script written in the Bash language. The test script contains a set of functions that are created by different network tools. A Bash installation script has been created to install all the necessary tools automatically and conveniently. In order to generate multimedia and data traffic, the vlc and nc commands were used. The multimedia data editing was handled by the ffmpeg tool and to graphically display the measured data the smag and youplot tools were used. Additionally, the efficiency of the selected compression formats depending on the playback speed of the Raspberry Pi 4B single-board computer was also compared.
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Evaluation of service quality parameters in data networks
Gregor, Lukáš ; Zeman, Václav (referee) ; Novotný, Vít (advisor)
The bachelor thesis deals about the issues of IP networks. About technologies for ensuring the quality of services, that is necessary to implement in today’s IP networks, due to the large increase of data flows. The bachelor thesis is oriented especially on technologies IntServ, DiffServ, MPLS and requirements of different types of services to the qualitative parameters of data networks. The aim of practical part is to devise a laboratory exercise for measuring qualitative parameters of different services under various condition in the intermediate network. Emulation of network parameters is carried out using emulation tool WANem with GNU Linux core.
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Contiki NTP Client
Luštický, Josef ; Čejka, Rudolf (referee) ; Kašpárek, Tomáš (advisor)
This BSc Thesis was performed during a study stay at the RheinMain University of Applied Sciences in Wiesbaden, Germany. The purpose of this thesis is to describe the operating system Contiki for embedded systems, NTP time synchronisation protocol and to design and implement an NTP client for the Contiki operating system.
|
|
|
The realization of the data communication for application to the mobile networks
Sodomka, Lukáš ; Růčka, Lukáš (referee) ; Jelínek, Mojmír (advisor)
Thesis deals with data technology, which can be used for communication between mobile and IP networks. The aim of the project is to design data communication and the subsequent implementation of the mobile and IP networks. First of all, it made an introduction to telecommunications systems with focus on GSM. Subsequently, the work examines data provided by GSM technology standard with a focus on GPRS, which is in the other chapters discusses in more detail. The resulting communication application protocol is designed in two versions, which is achieved by the creation of an autonomous system. Communication is implemented using JAVA programming language, which created an application client, server and implemented application protocol. Client application is tested on a mobile phone with Internet connection with support for GPRS technology. Server application is installed on a PC workstation, which is assigned a public IP address, it is easily addressable from the Internet.
|
|
|
QoS in IP network
Bumbál, Miroslav ; Novotný, Vít (referee) ; Růčka, Lukáš (advisor)
Master 's thesis deals about computer networks, which constitutes a global communication structure and play a very important role in today's society. The rapid development of Internet, the emergence of new multimedia applications and their increasing use of calls to the efficient functioning of the creation of such governance mechanisms of transmission, which are able to secure the required parameters. The thesis deals about the issue of quality of service (QoS) in IP networks. It presents the basic characteristics and requirements of these networks for the transmission of sensitive data by the quality of services, deals with the QoS definition, and describes the essential parameters to be followed to achieve the required quality of service in practical deployment. In addition, lists the various principles and options to ensure QoS in computer networks. Generally, it represents the Cisco 1841 router features and options to ensure quality of service in the network based on these routers. Practical thesis part provides two types of model IP networks, which were designed in order to verify the impact of service quality in real practice. Of the known methods to ensure QoS, which include a mechanism of Integrated services, Differentiated services, it focus its content about the Differentiated Services and the implementation of these in proposed network model. The last part of the work presents the results obtained by the impact of quality of service for the applications and their assessment.
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