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Evaluation of influence of UMTS radio access network parameters on network performance using Opnet Modeler simulation environment
Konečný, Zbyněk ; Škorpil, Vladislav (referee) ; Novotný, Vít (advisor)
This bachelor thesis deals with testing the effect of various parameters and their subsequent influence on the operation of the entire UMTS access network. Each simulation will be implemented in Opnet Modeler, which is used for network testing based on packet switching. The aim of this work is the most effective operation of UMTS networks. Since the UMTS network uses a shared radio environment for all users close to one transmitter, the total capacity of one cell is dependent on the size of interference produced by mobile terminals in the cell. Increasing the capacity of cells can be done by properly elected handover. The first part of this work will therefore concern different types of handovers and their impact on the network operation. Nowadays communication through mobile packet networks is becoming more and more important and that is why the second part of this work will focus on the simulation of traffic UMTS networks. It will be simulated by the behavior of individual applications without the use of QoS. Then the application will be assigned to different quality classes and the quality of service will be compared with simulations without using QoS. The conclusion of this work will contain laboratory work, which should partly make the students familiar with the data traffic in the UMTS network through a simulation program – Opnet Modeler.
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Interactive Visualization of XML
Seko, Martin ; Stryka, Lukáš (referee) ; Chmelař, Petr (advisor)
The main objective of this bachelor's thesis is to create an interactive visualization of data-oriented XML documents along with an implementation of such an application which is capable of displaying a document of this datatype. Application can generate schemas from an opened document in four supported languages: XML schema, DTD, RNG and RNC. It can also visually display this data in either tree or table format. Result of this bachelor's thesis is an application XMLspark, which is implemented as a multiplatform desktop application in the Java environment with the Swing GUI.
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Interactive Visualization of XML
Seko, Martin ; Stryka, Lukáš (referee) ; Chmelař, Petr (advisor)
The main objective of this bachelor's thesis is to create an interactive visualization of data-oriented XML documents along with an implementation of such an application which is capable of displaying a document of this datatype. Application can generate schemas from an opened document in four supported languages: XML schema, DTD, RNG and RNC. It can also visually display this data in either tree or table format. Result of this bachelor's thesis is an application XMLspark, which is implemented as a multiplatform desktop application in the Java environment with the Swing GUI.
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Evaluation of influence of UMTS radio access network parameters on network performance using Opnet Modeler simulation environment
Konečný, Zbyněk ; Škorpil, Vladislav (referee) ; Novotný, Vít (advisor)
This bachelor thesis deals with testing the effect of various parameters and their subsequent influence on the operation of the entire UMTS access network. Each simulation will be implemented in Opnet Modeler, which is used for network testing based on packet switching. The aim of this work is the most effective operation of UMTS networks. Since the UMTS network uses a shared radio environment for all users close to one transmitter, the total capacity of one cell is dependent on the size of interference produced by mobile terminals in the cell. Increasing the capacity of cells can be done by properly elected handover. The first part of this work will therefore concern different types of handovers and their impact on the network operation. Nowadays communication through mobile packet networks is becoming more and more important and that is why the second part of this work will focus on the simulation of traffic UMTS networks. It will be simulated by the behavior of individual applications without the use of QoS. Then the application will be assigned to different quality classes and the quality of service will be compared with simulations without using QoS. The conclusion of this work will contain laboratory work, which should partly make the students familiar with the data traffic in the UMTS network through a simulation program – Opnet Modeler.
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