Utjecaj parametara video kodiranja na iskustvenu kvalitetu mobilnog višekorisničkog video poziva ostvarenog putem tehnologije WebRTC

undergraduate thesis

• Title (english): The Impact of Video Encoding Parameters on Quality of Experience for Mobile Multi-Party WebRTC Video Calls
• Author: Tima Redžović
• Mentor: Lea Skorin-Kapov (mentor)
• Committee member: Lea Skorin-Kapov (predsjednik povjerenstva)
• Committee member: Mirko Sužnjević (član povjerenstva)
• Committee member: Ivan Slivar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2018-06-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

WebRTC je projekt otvorenog koda kojim je omogućena izravna audiovizualna komunikacija i prijenos podataka u Web pregledniku. Ova tehnologija ima široku uporabu i može biti integrirana u ostale komunikacijske sustave, primjerice: Voice over Internet Protocol (VoIP), sustave koji koriste SIP komunikaciju i javnu telefonsku mrežu. U radu su opisani svi API-ji i protokoli nužni za rad ove tehnologije te su objašnjene arhitekture njene izvedbe.
Istražen je utjecaj parametara video kodiranja na iskustvenu kvalitetu korisnika u slučaju mobilnog višekorisničkog video poziva koji koristi ovu tehnologiju. U sklopu toga je provedeno testiranje te su prikupljeni rezultati od 27 ispitanika. Iz prikupljenih podataka izvedeni su zaključci o ovisnosti iskustvene kvalitete o kvaliteti usluge kada se koristi tehnologija WebRTC.

Abstract (english)

WebRTC is an open source project that enables direct audiovisual communication and data transfer in a Web browser. This technology is widely used and can be integrated into other communication systems, such as Voice over Internet Protocol (VoIP), SIP communication and Public Switched Telephone Network (PSTN). This paper describes all the APIs and protocols necessary for the operation of this technology and explains the architectures that can be used.
The influence of video coding parameters on experiential quality of users in the case of mobile multi-party video conferencing using this technology has been elaborated. As a result, testing was carried out and the results of 27 respondents were collected. From the data collected, conclusions were drawn about the dependence of experience quality on quality of service when using WebRTC technology.

• Keywords: WebRTC; iskustvena kvaliteta; parametri video kodiranja; komunikacija u stvarnom vremenu
• Keywords (english): WebRTC; Quality of Experience; video coding parameters; real-time communication
• Language: croatian
• URN:NBN: urn:nbn:hr:168:636600
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-14 00:25:05