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Functionality verification of GRP routing protocol in OPNET Modeler environment
Kováč, Dominik ; Růčka, Lukáš (referee) ; Molnár, Karol (advisor)
The bachelor's thesis "Functionality verification of the routing protocol GPR in the OPNET Modeler environment" focuses on MANET networks question and deals with routing processes in these networks. This thesis includes a theoretical analysis of the GRP routing protocol. Furthermore, there is a step-by-step creation of a MANET simulation model with GPR routing protocol in OPNET Modeler and its subsequent simulations to verify the functionality of the Protocol itself, its parameters and the extension of the hello paket by custom parameter.
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Monitoring of System Resources Using OpenHAB Environment
Štůsek, Martin ; Kováč, Dominik (referee) ; Mašek, Pavel (advisor)
The aim this bachelor thesis is detailed familiarity with the technology OpenHAB and create functional application that displays resource usage. Monitoring of system resources won‘t be implemented only in one station, but in all instances OpenHAB in a local network. Created application also allows remote access to reference statistics, without having to connect to the same network. For obtaining system information is used system information package, which is built over SIGAR library. To transfer between stations and end-collection device is used HTTP binding and REST API. The first part of the bachelor thesis describes in detail the technology OpenHAB, the second part describes the technology used and the created applications. In the last section gives guidance on commissioning of OpenHAB on the end device.
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Web application for subjective evaluation of streamed video
Lipa, Matúš ; Červenák, Rastislav (referee) ; Kováč, Dominik (advisor)
This work deals with creating web application for subjective evaluation of streamed video and parts which are necessary. Streaming techniques are described from simple classical technique to adaptive bitrate streaming techniques. This work focus on adaptive bitrate streaming technology using MPEG - DASH and editing video source with tool FFmpeg. With using JavaScript is create a player who´s able to simulate changes in the network as a change in available bandwidth. It´s possible to create scenarios under which the player selects the video playback quality. The player is placed into a complex tool for evaluation of quality of experience.
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Performance Analysis of Mobile Networks for M2M Communication
Důbrava, Marek ; Kováč, Dominik (referee) ; Mašek, Pavel (advisor)
This bachelor thesis "The benchmark analysis of mobile network for M2M communication" focuses on theoretical study of M2M devices and third- and fourth-generation mobile networks. The second part of the thesis is devoted to the LTE network overload simulation. The LTE network overload is achieved in two ways: the overload caused by the volume of data transmitted, or the overload caused by devices newly connected to the network. The third part of the thesis deals with the design and simulation improvement of M2M communication in the LTE network. A network simulator OPNET Modeler was used for the simulation.
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Implementation of Communication Protocol Wireless M-BUS in Simulation Environment NS-3
Zeman, Kryštof ; Kováč, Dominik (referee) ; Mašek, Pavel (advisor)
The theoretical part of the thesis focuses on history and development of M2M com- munication, Wireless M-Bus protocol and NS-3 Network Simulator. It briefly describes characteristics of M2M communication, Wireless M-Bus and NS3 simulator. Physical and link layer of Wireless M-bus protocol are described in great detail to provide basics needed for understanding and orientation in the topic. Practical part of the thesis is focused on structure of used Simple Wireless module and basic simulation scenerio is built. The scenerio demostrates basic functions of the module.
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Impact of rebuffering events on subjective QoE measurement of streaming video
Hůrek, Marek ; Pokorný, Jiří (referee) ; Kováč, Dominik (advisor)
This bachelor thesis mainly deals with the creation of a web-tool for subjective evaluation of quality of video in initial and repeated video loading and buffering. The simulation of adaptive streaming, focused on buffering, is performed on the basis of scenarios created in the database that are randomly generated and implemented into the aforementioned web-tool. The theoretical part of this thesis is focused on the analyzation of different types of streaming, streaming services and QoE service (subjective and objective evaluation). Two basic methods for the subjective evaluation (laboratory method and crowdsourcing) are described in more detail. At the end there are analyzed data received from measurement. Results are put into graphs with a description of subjective evaluation MOS.
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Impact of resolution change on subjective QoE measurement of streaming video
Nevřelová, Monika ; Pokorný, Jiří (referee) ; Kováč, Dominik (advisor)
This thesis deals with the process of development of web application for subjective evaluation of streaming video. The thesis describes the adaptive streaming technique, streaming services and both subjective and objective evaluation of streaming video. Methods for measuring of subjective evaluation (namely laboratory method and crowdsourcing method) are described in more detail. A special web-based tool for subjective evaluation of streaming video was created with use of HTML, PHP and MySQL languages. To simulate the network changes, such as changes of the bandwidths, there´re created scenarios where the player selects the quality of the streamed video. The process of collecting data via Laboratory method and Crowdsourcing method is described in the thesis. Collected data are then analyzed.
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Impact of rebuffering events on subjective QoE measurement of streaming video
Hůrek, Marek ; Pokorný, Jiří (referee) ; Kováč, Dominik (advisor)
This bachelor thesis mainly deals with the creation of a web-tool for subjective evaluation of quality of video in initial and repeated video loading and buffering. The simulation of adaptive streaming, focused on buffering, is performed on the basis of scenarios created in the database that are randomly generated and implemented into the aforementioned web-tool. The theoretical part of this thesis is focused on the analyzation of different types of streaming, streaming services and QoE service (subjective and objective evaluation). Two basic methods for the subjective evaluation (laboratory method and crowdsourcing) are described in more detail. At the end there are analyzed data received from measurement. Results are put into graphs with a description of subjective evaluation MOS.
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