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Multimedia data transmission in mobile networks and assurence of QoS
Bortel, Martin ; Novotný, Vít (referee) ; Havelka, Dušan (advisor)
In Bachelor’s Thesis - Multimedia Data Transmission over Mobile Networks and assurance of QoS basic characteristics of UMTS network are described. At the beginning of the thesis types of data and their properties are explained. Then the attention is paid to data transfers through the network and assurance of QoS. The principle of OSI model, function of RLC protocol and types of QoS classes are mentioned in this section. PDP Contexts and their application in the network are pointed out. At the end of the theoretical part the structure of network is described and the functionality of its parts is depicted. Closure of the thesis is focused on the simulations of UMTS network model in OPNET Modeler environment.
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Cooperation of telecommunication and information transmission systems
Novák, Daniel ; Vychodil, Petr (referee) ; Škorpil, Vladislav (advisor)
Some telecommunication systems are theoretically analyzed in this thesis. Basic types of digital modulations are also analyzed here and applying them to practice. In the implementation part of the thesis are realized three laboratory tasks addressing to modulations issue, coding and data transfer in the SONET network. Tasks are simulated by EMONA TutorTIMS. software. In appendix are described functions and parameters of used modules.
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Simulation of UMTS system
Predajňa, Martin ; Prokopec, Jan (referee) ; Kejík, Petr (advisor)
The bachelor’s thesis deals with modeling of UMTS system in downlink. It is focused on signal processing in physical layer and observes BER depending on parameters of model of real environment by setting different interruption. Basic architecture of UMTS system, channel coding and multiplexing of transport channels to physical channels is described in this thesis. Radio frame structure for downlink dedicated physical data channel is also described there. Using of pseudorandom sequences in CDMA systems and their properties are key parameters for observation of BER. Simulation uses single-user model in basic band, which enables to observe the influence of noise and narrowband jamming. These channel properties have impact on BER, which is used for evaluation of UMTS system. The orthogonality of sequences is influenced by multi access interference so detection of required signal (which uses correlation properties of spreading sequences) is limited.
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Project for Utilizing Mobile Technology in a Company
Martincová, Petra ; Štěpánek, Ladislav (referee) ; Kříž, Jiří (advisor)
This bachelor's thesis introduces basic terms and principles that are currently used in mobile technologies. In addition, a list of operating agencies which can be found on the czech market is included. The offers of operating agencies are evaluated based on the provided information, and the company can choose an offer which would reduce its expenses. One of the offers is chosen as a particular solution which suits the company best.
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Project for utilizing Mobile Technology
Makovský, Marek ; Smílek, Pavel (referee) ; Kříž, Jiří (advisor)
In my present work first I introduce the readers to the development of the standard of the prezent wireless mobile network and consequent possible development together with introducing certain recommendations. In the first, theoretical part, are described commercial wirelees systems used by most mobile operators in Europe. The following part deals with the analyses of the present situation and summarizes existing ceses of using mobile technologies. The last part deals with concrete projects recommanding utilizing mobile networks and summarising the problemes of data communication between the controlling part and transmitting terminal on the other end. In the conclusion you will find the recommandation.
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Convergent Mobile Technology Solutions for Corporate Customers
Stančík, Michal ; Tomek, Martin (referee) ; Kříž, Jiří (advisor)
Bachelor’s thesis deals with ways how to use convergent solutions of mobile technologies as benefit for corporate customers, especially small real estate agency. Theoretical area describes basic voice and data transfer’s principles and technologies in mobile networks. Second part analyse key working processes and tries to reveal deficiencies in current real estate agency’s telecommunication system. Practical proposal shows how to remove discovered deficiencies by adjustment of key working processes and afterwards apply the most useful functionalities of convergent solution. In the end there is a costs comparison between current and suggested telecommunication system.
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Wireless Network
Götthans, Jakub ; Hruboš, Zdeněk (referee) ; Koch, Miloš (advisor)
The aim of this work is to design and realization of WLAN at GK SERVIS, spol. s r.o. The conception will be verified by measuring the functionality, security and reliability. The thesis is divided into theoretical, analytical and practical. The first part will discuss the theoretical problems of processing of wireless networks, in the second part analyzed the current status of LAN and WLAN in the last section has been prepared by the project and subsequently realized.
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Convergent Mobile Technology Solutions for Corporate Customers
Stančík, Michal ; Tomek, Martin (referee) ; Kříž, Jiří (advisor)
Bachelor’s thesis deals with ways how to use convergent solutions of mobile technologies as benefit for corporate customers, especially small real estate agency. Theoretical area describes basic voice and data transfer’s principles and technologies in mobile networks. Second part analyse key working processes and tries to reveal deficiencies in current real estate agency’s telecommunication system. Practical proposal shows how to remove discovered deficiencies by adjustment of key working processes and afterwards apply the most useful functionalities of convergent solution. In the end there is a costs comparison between current and suggested telecommunication system.
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Project for Utilizing Mobile Technology in a Company
Martincová, Petra ; Štěpánek, Ladislav (referee) ; Kříž, Jiří (advisor)
This bachelor's thesis introduces basic terms and principles that are currently used in mobile technologies. In addition, a list of operating agencies which can be found on the czech market is included. The offers of operating agencies are evaluated based on the provided information, and the company can choose an offer which would reduce its expenses. One of the offers is chosen as a particular solution which suits the company best.
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