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Quality of Service Assurance in UMTS Network
Nesveda, Marek ; Novotný, Vít (referee) ; Hošek, Jiří (advisor)
The bachelor´s thesis deals with the assurance of the quality of service (QoS) in UMTS (Universal Mobile Telecommunications System) networks. It consists of theoretic and practical parts. The first, theoretic part first describes the quality of service assurance in general and then focuses on the area of the assurance of the quality of service (QoS) in UMTS network environment specifically. It describes the QoS concept in UMTS, typical UMTS network architecture, its components as well as various QoS classes defined in UMTS. It explains parameters that define the quality of service in UMTS network, and describes call set-up for the purposes of transmission between end users. The second, practical part of the bachelor´s thesis describes how to configure a complex UMTS network simulation model in OPNET Modeler, ver..14.5. It gives a detailed description of how to configure each network component and how to set its parameters, in two different scenarios: first including and then excluding QoS. In conclusion, the thesis summarises the results of the simulation in both scenarios, gives their explanations and compares them graphically.
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Effective utilization of converged network
Nesveda, Marek ; Vychodil, Petr (referee) ; Škorpil, Vladislav (advisor)
The Master´s thesis deals with the field of converged networks and their effective utilization, focusing specifically on telematic networks. For modelling of a specific application, the field of vehicle telematics has been chosen. The thesis consists of two series of simulations performed in Opnet Modeler network simulator. The first theoretic part gave an overview of protocols used in converged networks, with a more detailed description of routing protocols. The attention also centred on the mechanisms for assuring the quality of service in IP. The subsequent practical part consisted in creating the simulation of a converged telematic network in Opnet Modeler network simulator, configuration of scenarios for assuring QoS using RSVP and DSCP protocols and the simulation itself. The results of the simulations for both scenarios were compared and represented in graphic form. The second theoretic part described queueing disciplines, as well as congestion control and congestion avoidance mechanisms. The corresponding practical part compared FIFO, PQ and WFQ queueing algorithms within the same simulated converged telematic network, using DSCP protocol scenario, which gave much better results in the first series of simulations. Again, the results of the simulations were compared and represented in graphic form.
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Quality of Service Assurance in UMTS Network
Nesveda, Marek ; Novotný, Vít (referee) ; Hošek, Jiří (advisor)
The bachelor´s thesis deals with the assurance of the quality of service (QoS) in UMTS (Universal Mobile Telecommunications System) networks. It consists of theoretic and practical parts. The first, theoretic part first describes the quality of service assurance in general and then focuses on the area of the assurance of the quality of service (QoS) in UMTS network environment specifically. It describes the QoS concept in UMTS, typical UMTS network architecture, its components as well as various QoS classes defined in UMTS. It explains parameters that define the quality of service in UMTS network, and describes call set-up for the purposes of transmission between end users. The second, practical part of the bachelor´s thesis describes how to configure a complex UMTS network simulation model in OPNET Modeler, ver..14.5. It gives a detailed description of how to configure each network component and how to set its parameters, in two different scenarios: first including and then excluding QoS. In conclusion, the thesis summarises the results of the simulation in both scenarios, gives their explanations and compares them graphically.
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|
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Effective utilization of converged network
Nesveda, Marek ; Vychodil, Petr (referee) ; Škorpil, Vladislav (advisor)
The Master´s thesis deals with the field of converged networks and their effective utilization, focusing specifically on telematic networks. For modelling of a specific application, the field of vehicle telematics has been chosen. The thesis consists of two series of simulations performed in Opnet Modeler network simulator. The first theoretic part gave an overview of protocols used in converged networks, with a more detailed description of routing protocols. The attention also centred on the mechanisms for assuring the quality of service in IP. The subsequent practical part consisted in creating the simulation of a converged telematic network in Opnet Modeler network simulator, configuration of scenarios for assuring QoS using RSVP and DSCP protocols and the simulation itself. The results of the simulations for both scenarios were compared and represented in graphic form. The second theoretic part described queueing disciplines, as well as congestion control and congestion avoidance mechanisms. The corresponding practical part compared FIFO, PQ and WFQ queueing algorithms within the same simulated converged telematic network, using DSCP protocol scenario, which gave much better results in the first series of simulations. Again, the results of the simulations were compared and represented in graphic form.
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