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Optimization of UMTS access network
Havlíček, Karel ; Kovář, Petr (referee) ; Novotný, Vít (advisor)
This master’s thesis deals with a UMTS radio access network optimization, containing radio interface analysis, services and procedures description, ways to correct parameters calculations and settings and other issues necessary for a correct access network operation. The goal is effective network operation, minimum costs and maximum performance and flexibility of the network. The optimization during system operation is important because of the system character. The UMTS system uses the WCDMA technology, where particular users share the same frequency band and they are distinguished from one another via code sequences. The capacity of such a system is then given by the interference level - each particular user increases the interference level by the value corresponding to his transmit power. The maximum cell capacity is determined by the maximum interference level at which users can still operate with required services, so it is related not only to the number of users, but also to their bit rate. The optimization allows effective usage of the system for different services with different requirements. The main optimization tool is the radio resource management, containing number of algorithms, such as admission control, which decides the acceptance or rejection of a new user demanding certain service, power control, which ensure that users transmit with a minimal power sufficient for required service, handover and cell selection algorithms etc. The major parameter used by these algorithms is a cell load factor, which is related to the interference level margin. There are several methods for the load factor estimation and some of them are described in this work. Some other optimization techniques are mentioned here, too. This work also contains a laboratory exercise proposal for radio resource management introduction using the OPNET Modeler network simulation tool.
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Science problems of PISA type at czech schools
Havlíček, Karel ; Mandíková, Dana (advisor) ; Houfková, Jitka (referee)
This diploma thesis examines the ability of people to solve scientific tasks in PISA research, how well is PISA known and what strategies are used when solving these tests. Subjects of this research were students of ninth grade of elementary school, university students of pedagogy (future science teachers) and small group of in-service science teachers. Basic characteristic of the PISA research, its methods and how will they change in year 2015 are given in the beginning of this work. The following chapters contain information about my own research, namely what tasks and questions were selected for the test and description of the sample of respondents. Majority of the work focuses on detailed analysis of their results. Aim of this analysis was to compare pupils with their current or future teachers and explore how their results are linked to their motivation or familiarity with PISA research. This work also contains three examples of tasks illustrating new framework for PISA 2015, two of which I translated to Czech.
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Science problems of PISA type at czech schools
Havlíček, Karel ; Mandíková, Dana (advisor) ; Houfková, Jitka (referee)
This diploma thesis examines the ability of people to solve scientific tasks in PISA research, how well is PISA known and what strategies are used when solving these tests. Subjects of this research were students of ninth grade of elementary school, university students of pedagogy (future science teachers) and small group of in-service science teachers. Basic characteristic of the PISA research, its methods and how will they change in year 2015 are given in the beginning of this work. The following chapters contain information about my own research, namely what tasks and questions were selected for the test and description of the sample of respondents. Majority of the work focuses on detailed analysis of their results. Aim of this analysis was to compare pupils with their current or future teachers and explore how their results are linked to their motivation or familiarity with PISA research. This work also contains three examples of tasks illustrating new framework for PISA 2015, two of which I translated to Czech.
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Science tasks in PISA 2009 research - analysis of czech pupil`s results
Havlíček, Karel ; Mandíková, Dana (advisor) ; Houfková, Jitka (referee)
This bachelor thesis is devoted to analysis of Czech pupils` results in scientific tasks in PISA 2009 research. Basic characteristic of the PISA research and its methods is given in the beginning of this work. The following chapters contain explanation of the term scientific literacy and descriptions of testing questions and methods of their evaluation. Majority of the work focuses on detailed analysis of results of Czech pupils from year 2009 in science with emphasis on physics. Goal of this thesis was to find correlation between test questions in which Czech pupils achieved either worst or best results. This work also contains 3 model testing questions of PISA type of my own creation.
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Employer branding in Building Industry
Hralová, Lenka ; Bušina, Filip (advisor) ; Havlíček, Karel (referee)
The Master's Thesis is focused on a modern trend in human resource management, employer branding, analysed as a general image of a company as employer, its working conditions and a preference of this company as a stable employer. The main goal is to review the range and relevance of employer branding within Czech building industry based on existing company and comparison with its competition. The first part describes theoretical definitions of employer branding and its instruments. The second part presents the empirical research done in Metrostav a.s., comparison with its competition and a questionnaire between civil engineering students and construction apprentices that was focused on their expectations of future employment in the building industry. In the end of the thesis the research is evaluated and the improvements that would lead to empowerment of employer brand are suggested.
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Optimization of UMTS access network
Havlíček, Karel ; Kovář, Petr (referee) ; Novotný, Vít (advisor)
This master’s thesis deals with a UMTS radio access network optimization, containing radio interface analysis, services and procedures description, ways to correct parameters calculations and settings and other issues necessary for a correct access network operation. The goal is effective network operation, minimum costs and maximum performance and flexibility of the network. The optimization during system operation is important because of the system character. The UMTS system uses the WCDMA technology, where particular users share the same frequency band and they are distinguished from one another via code sequences. The capacity of such a system is then given by the interference level - each particular user increases the interference level by the value corresponding to his transmit power. The maximum cell capacity is determined by the maximum interference level at which users can still operate with required services, so it is related not only to the number of users, but also to their bit rate. The optimization allows effective usage of the system for different services with different requirements. The main optimization tool is the radio resource management, containing number of algorithms, such as admission control, which decides the acceptance or rejection of a new user demanding certain service, power control, which ensure that users transmit with a minimal power sufficient for required service, handover and cell selection algorithms etc. The major parameter used by these algorithms is a cell load factor, which is related to the interference level margin. There are several methods for the load factor estimation and some of them are described in this work. Some other optimization techniques are mentioned here, too. This work also contains a laboratory exercise proposal for radio resource management introduction using the OPNET Modeler network simulation tool.
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Performance management system and motivation
Petera, Petr ; Fibírová, Jana (advisor) ; Wagner, Jaroslav (referee) ; Havlíček, Karel (referee)
The positive impact of performance measurement and management (in connection with rewards) on motivation of workforce have been questioned in recent years and decades. The conceptual part of the thesis strives to identify whether the above mentioned criticisms of discussed systems is based on their inherent properties (characteristics) or on properties (characteristics) of their specific implementations. Extensive multidisciplinary literature review (especially from the fields of accounting, performance measurement, financial management, microeconomics, labor economics, behavioral economics and psychology) showed that the performance measurement and management systems (including linkages to remuneration) have the potential to positively impact motivation, work effort and performance of workforce. Refusing this potential, which often occurs especially in relation to remuneration, is based on specific applications, and it must be dismissed as simplistic. The literature review also helped identify the factors and characteristics of the discussed systems, which are crucial for their positive motivational effect, as well as properties that are usually undesirable in terms of motivation. Another significant outcome of the conceptually oriented part of the thesis is a model framework enabling detailed analysis of rewarding for performance. The thesis also describes and discusses the results of two empirical surveys, the first of which was focused on the analysis of performance measurement and management system and remuneration system, and the second survey was primarily focused on detailed analysis of the system of remuneration and motivation of workforce. Regarding performance measurement, as positive can be perceived the fact that strategic performance measurement systems of the balanced scorecard type are intensively used, including the search for causal links between measures and efforts to link these systems to the remuneration of workforce. It should be noted however, that the issue of interconnection of balanced scorecard systems with remuneration of workforce is by respondents considered to be one of the biggest problems of balanced scorecard implementation. Therefore is identified an area where further research is needed, particularly in the form of case-study based research. All respondents indicated the use of budgets to fulfill many functions (e.g. tool for financial management in terms of coordination and verification of planned business objectives and early risk detection, tool for setting of targets of the business as a whole, and tool for internal motivation and management) and it is possible to conclude that there is no abandonment of budgets (as sometimes implied by "beyond budgeting"). A surprising finding was little use of new performance measures, especially economic value added (as top financial measures were usually referred EBITDA and EBIT). The results of both surveys showed that respondents seek to implement quality systems of remuneration, but revealed were also some problematic features of these systems. Particularly important is the fact that rewards for long-term performance are relatively little used, which can lead to short-term oriented decision making of managers. This problem is exacerbated by the fact that rewards are usually awarded in the form of money; the use of equity-based rewards (e.g. shares) is very low. Furthermore, insufficient is also utilization of rewards in the form of work-life balance programs and utilization of rewards in the form of appreciation.
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Corporate culture companies and knowledge economy.
HAVLÍČEK, Karel
The aim of this thesis was to analyze the corporate culture of selected company in the knowledge economy. For research of the corporate culture of the selected company were used information from the questionnaire, unguided interviews and observations which were obtained from the company management and from the employees.
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