Mjerenje i analiza iskustvene kvalitete mobilnih višekorisničkih video poziva ostvarenih putem tehnologije WebRTC

undergraduate thesis

• Title (english): Measurement and Analysis of Quality of Experience for Mobile Multi-Party WebRTC Video Calls
• Author: Ivona Mihotić
• Mentor: Lea Skorin-Kapov (mentor)
• Committee member: Lea Skorin-Kapov (predsjednik povjerenstva)
• Committee member: Ivan Slivar (član povjerenstva)
• Committee member: Ivan Bartolec (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2019-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Web Real-Time Communication (WebRTC) je besplatan, otvoreni projekt koji omogućuje preglednicima i mobilnim aplikacijama komunikaciju između ravnopravnih čvorova u stvarnom vremenu putem jednostavnih aplikacijskih programskih sučelja (API-ja). Korisnici koji koriste podržane web preglednike mogu obavljati pozive, dijeliti datoteke ili sudjelovati u video konferencijama s drugim korisnicima. Tehnologija WebRTC je standardizirana od strane dva tijela, World Wide Web Consortium (W3C) koji je odgovoran za standardizaciju API-ja i Internet Engineering Task Force (IETF) koji je odgovoran za standardizaciju protokola.
Iskustvena kvaliteta definirana je kao stupanj zadovoljstva ili uznemirenosti korisnika aplikacije ili usluge. U ovom radu provedeno je subjektivno ispitivanje iskustvene kvalitete mobilnog višekorisničkog video poziva ostvarenog između troje sudionika putem tehnologije WebRTC. Ispitivao se utjecaj rezolucije video okvira i broja okvira po sekundi, konzistentnost odgovora sudionika te su analizirani prikupljeni mrežni parametri. U ispitivanju je sudjelovalo 27 osoba. Na temelju analize prikupljenih podataka izvedeni su zaključci o ovisnosti iskustvene kvalitete o kvaliteti usluge kada se koristi WebRTC tehnologija.

Abstract (english)

WebRTC is a free, open project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. It allows direct peer-to-peer communication. Users with WebRTC-capable browsers can make calls, share files, or participate in video conferences with other users. WebRTC is standardized by two authorities, the World Wide Web Consortium (W3C), which is responsible for standardizing the APIs, and the Internet Engineering Task Force (IETF), which is responsible for standardizing related protocols.
Quality of Experience (QoE) is defined as the degree of delight or annoyance of the user of an application or service. This paper describes a subjective study of Quality of Experience for mobile multi-party WebRTC video calls between three participants. The impact of the video frame resolution and frame per second, the consistency of the participant's responses and the collected network parameters were analyzed. 27 persons participated in the study. Based on the analysis of the collected data, conclusions were drawn about the dependence of the Quality of Experience on Quality of Service – related parameters when using WebRTC technology.

• Keywords: WebRTC; komunikacija u stvarnom vremenu; iskustvena kvaliteta; parametri video kodiranja; mrežni parametri
• Keywords (english): WebRTC; Real-Time Communication; Quality of Experience; video coding parameters; network parameters
• Language: croatian
• URN:NBN: urn:nbn:hr:168:574520
• 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: 2020-01-07 20:23:34