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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Objective analysis of data obtained during quality of service measurements
 Dopita, Michal ; Křepelka, Václav (referee) ; Škorpil, Vladislav (advisor)
This thesis is focused on objective analysis of data obtained during quality of service measurements provided by the company O2 Czech Republic Inc. Purpose of this study is mapping of existing methods, resources and ways of measurement. The result of practical part is design of new methodology of measurement for the department RAN Management, which is responsible for measurement of quality of services.
Detailed record
Testing of voice quality of VoLTE/VoWiFi technology
 Kráčala, Martin ; CZ, Radek Penížek, T-Mobile (referee) ; Hanus, Stanislav (advisor)
This master’s thesis deals with application of the ITU-T G.107 E-model for objective non-intrusive voice transmission quality measurements in LTE and Wi-Fi networks. The first part presents techniques used for voice quality measurements, particularly algorithm POLQA, analysis of the E-model and overview of the VoLTE and VoWiFi technologies. The main part of this paper consists of design of the R-factor calculation formula using parameters measured by Android OS powered devices. The algorithm design is based on extensive VoLTE measurements and its voice quality prediction successfulness is evaluated by comparison with POLQA measurements. The paper also presents implementation possibilities of the proposed algorithm on devices with Android OS.
Detailed record
Objective analysis of data obtained during quality of service measurements
 Dopita, Michal ; Křepelka, Václav (referee) ; Škorpil, Vladislav (advisor)
This thesis is focused on objective analysis of data obtained during quality of service measurements provided by the company O2 Czech Republic Inc. Purpose of this study is mapping of existing methods, resources and ways of measurement. The result of practical part is design of new methodology of measurement for the department RAN Management, which is responsible for measurement of quality of services.
Detailed record
Testing of voice quality of VoLTE/VoWiFi technology
 Kráčala, Martin ; CZ, Radek Penížek, T-Mobile (referee) ; Hanus, Stanislav (advisor)
This master’s thesis deals with application of the ITU-T G.107 E-model for objective non-intrusive voice transmission quality measurements in LTE and Wi-Fi networks. The first part presents techniques used for voice quality measurements, particularly algorithm POLQA, analysis of the E-model and overview of the VoLTE and VoWiFi technologies. The main part of this paper consists of design of the R-factor calculation formula using parameters measured by Android OS powered devices. The algorithm design is based on extensive VoLTE measurements and its voice quality prediction successfulness is evaluated by comparison with POLQA measurements. The paper also presents implementation possibilities of the proposed algorithm on devices with Android OS.
Detailed record

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