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Support of real-time services in recent 3G mobile networks
Vinkler, Lukáš ; Mácha, Tomáš (referee) ; Novotný, Vít (advisor)
This Master’s thesis is focused on the recent 3G mobile networks. The first chapter describes an evolution of standardization 3G and surveys a gradual development of 3G networks in Czech Republic from a point of view of commercially launched technologies and assigned frequency spectrums for single mobile operators. UMTS and CDMA 2000 are briefly approached in next subchapters. The subchapter CDMA 2000 is briefly concentrated on architecture and a physical layer of this technology and characterizes main features of four revises of developmental branch CDMA 2000 1x EV-DO. The subchapter UMTS is especially focused on a comparison of air interfaces TD-CDMA and W-CDMA. New features were implemented to the recent system UMTS for a better support of real-time services. These features increasing a throughput and decreasing a delay are described in a chapter Technology HSPA. This chapter chooses the most important features and describes changes (in a control and architecture) which had to be implemented. First chapter is finished by technology WiMAX. The most recent perspective cell systems are compared with WiMAX in this subchapter and qualitative parameters of WiMAX are shown there. The three different 3G technologies (UMTS-FDD, UMTS-TDD and CDMA 2000) are lunched in Czech Republic. The second chapter briefly compares coverage of three czech mobile operators (Telefónica O2, T-Mobile and U:fon) and then presents results of qualitative parameters of used 3G technologies. The simulation conducted by software IxChariot were focused on to gauge parameters like throughput, delay, jitter, lost data, MLR and DF. The conditions for providing real-time services were specified based on simulations that were practically checked. The lab composed in last chapter should bring closer to students technology UMTS-TDD launched by T-Mobile. The students will measure the qualitative parameters of this technology with the assistance of commonly available tools.
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Change of the Corporate Culture of Company BUWOL METAL s.r.o.
Vrzáček, Tomáš ; Vinkler, Lukáš (referee) ; Mráček, Pavel (advisor)
The aim of this bachelor thesis is to make suggestions and find possbilities of improving the corporation culture in a relavant company. The contenst of the theoretical part are the description of the corporation culture and its influence on the company performance. Then the theoretical part includes motivation possibilities of the employees and the company promotion on the market. The results of the investigation are presented in the practising part. Suggested recommendations that support the change of the corporate structure are also a part of the practising part.
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Business Plan
Vinkler, Lukáš ; Kašpárek, Jan (referee) ; Šimberová, Iveta (advisor)
This Bachelor´s thesis is divided into three main parts. Firstly, theoretical one describes individual parts of a business plan. Then, this thesis compiles chosen analysis of the ski school and rental ARON Sport based on knowledge of the first part. These analysis serve as a basic for suggestions that get better a current adverse situation of the ski school.
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Business Plan
Vinkler, Lukáš ; Kašpárek, Jan (referee) ; Šimberová, Iveta (advisor)
This Bachelor´s thesis is divided into three main parts. Firstly, theoretical one describes individual parts of a business plan. Then, this thesis compiles chosen analysis of the ski school and rental ARON Sport based on knowledge of the first part. These analysis serve as a basic for suggestions that get better a current adverse situation of the ski school.
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Change of the Corporate Culture of Company BUWOL METAL s.r.o.
Vrzáček, Tomáš ; Vinkler, Lukáš (referee) ; Mráček, Pavel (advisor)
The aim of this bachelor thesis is to make suggestions and find possbilities of improving the corporation culture in a relavant company. The contenst of the theoretical part are the description of the corporation culture and its influence on the company performance. Then the theoretical part includes motivation possibilities of the employees and the company promotion on the market. The results of the investigation are presented in the practising part. Suggested recommendations that support the change of the corporate structure are also a part of the practising part.
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Support of real-time services in recent 3G mobile networks
Vinkler, Lukáš ; Mácha, Tomáš (referee) ; Novotný, Vít (advisor)
This Master’s thesis is focused on the recent 3G mobile networks. The first chapter describes an evolution of standardization 3G and surveys a gradual development of 3G networks in Czech Republic from a point of view of commercially launched technologies and assigned frequency spectrums for single mobile operators. UMTS and CDMA 2000 are briefly approached in next subchapters. The subchapter CDMA 2000 is briefly concentrated on architecture and a physical layer of this technology and characterizes main features of four revises of developmental branch CDMA 2000 1x EV-DO. The subchapter UMTS is especially focused on a comparison of air interfaces TD-CDMA and W-CDMA. New features were implemented to the recent system UMTS for a better support of real-time services. These features increasing a throughput and decreasing a delay are described in a chapter Technology HSPA. This chapter chooses the most important features and describes changes (in a control and architecture) which had to be implemented. First chapter is finished by technology WiMAX. The most recent perspective cell systems are compared with WiMAX in this subchapter and qualitative parameters of WiMAX are shown there. The three different 3G technologies (UMTS-FDD, UMTS-TDD and CDMA 2000) are lunched in Czech Republic. The second chapter briefly compares coverage of three czech mobile operators (Telefónica O2, T-Mobile and U:fon) and then presents results of qualitative parameters of used 3G technologies. The simulation conducted by software IxChariot were focused on to gauge parameters like throughput, delay, jitter, lost data, MLR and DF. The conditions for providing real-time services were specified based on simulations that were practically checked. The lab composed in last chapter should bring closer to students technology UMTS-TDD launched by T-Mobile. The students will measure the qualitative parameters of this technology with the assistance of commonly available tools.
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