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Videoconferencing application integrated in web browser
Mucha, Ján ; Atassi, Hicham (referee) ; Číka, Petr (advisor)
Bachelor thesis is focused on integrating videoconferencing application in the web browser. Implementation is realized using HTML5 and WebRTC tool, designed by web browsers makers such as Google and Firefox. To work with WebRTC is used API (Application Programming Interface) sipML5, which is implemented using JavaScript. This API contains package of functions and classes used to create videoconference application using simple commands. For signaling is used SIP protocol. Client application provides communication point-to-point, chat and multipoint communication. Multipoint communication was tested on the server application enabling the creation and management of videoconferencing rooms. For this was used software MCU Media Server and MediaMixer Server developed by Medooze company.
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Videoconferencing Application
Jandera, Pavel ; Šmirg, Ondřej (referee) ; Číka, Petr (advisor)
Videoconferencing is a modern way of communication, in which the participants carry picture and sound and during transmission can also exchange various data. The aim of this work is to create an application for the connection of up to eight participants to videoconferencing and create a web interface to facilitate configuration of this application. Videoconferences types and the feasibility are described in the first part of this work. Furthermore, the SIP (Session Initiation Protocol) protocol used to production of multimedia sessions is described. RADVISION IVP system was selected to the implementation of videoconferencing application. IVP is a complex system for the operation of videoconferencing, which allows implementing and operating various types of services. Basic components of system are described in next section of this work. Second part of this work describes interface for applications creating that IVP offers to programmers. The main part of this work is the design and implementation of video conferencing application that is realized as an IVP service. There is described the implementation and testing. A web interface to facilitate the configuration of video conferencing applications has been designed and implemented. This interface also allows the service provider to manage user accounts. The web interface was implemented in Java EE.
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Efficiency of Wireless Networks from Services View
Buchta, Marek ; Vymazal, Michal (referee) ; Škorpil, Vladislav (advisor)
Subject of this thesis was the issue of effectiveness of wireless networks from the perspective of services. Become acquainted with WiFi network standard IEEE 802.11 with protocols and principles of WiFi networks and services. It should be focused on the quality of service QoS. In teoretical part of this thesis are described problems considering wireless networks, layer model and types of nets used in WiFi. Standard IEEE 802.11 is analysed in details including supplements and used packets. Special attention is paid to the quality of service QoS. Next are discussed the principles and application services as VoIP, videoconferencing, video streaming and others in WiFi network. On the basis of obtained knowledge is designed extensive WiFi network with assured supply of services. For modelling and simulation of wireless network is used software development environment Opnet Modeler. Model of wireless network is used to optimize and analyse this wireless communication network. In thesis are also simulated properties of data which are sensitive to delay. In last part of thesis is created a laboratory work, which contains a submission of task, detailed theory, wiring diagram, instructions for elaboration, guidelines for simulation and example of elaboration of task. Work is about comparison of network with used 802.11b and 802.11e standard, and support of quality of service QoS.
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Options and use of multimedia communications in the corporate practice
Veselý, Petr ; Krsek, Libor (advisor) ; Horný, Stanislav (referee)
This work puts a number of objectives, describe the potential uses, examples of software and hardware solutions and highlight the trends and innovations in the field of multimedia communications. The reader will be given to the problems of multimedia communication and multimedia, including a description of the components of multimedia. In the next chapter we will find the description of the means of multimedia communication, where a brief description of the possibilities of products and their facilities and most of the chapters focuses on virtual reality. Another part is devoted to the use of multimedia communication in a company, especially how it should be used effectively. The final part deals with modern technologies and trends in the area of control, imaging and miniaturization. The work is written in a way that the reader does not require previous knowledge of advanced technologies which are described, except of a general overview of information technologies.
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