Analiza utjecaja različitih metoda kompresije govora na prijenosni kapacitet za uslugu VoIP

undergraduate thesis

• Title (english): Analysis of the Effect of Various Speech Compression Methods on VoIP Service Transmission Capacity
• Author: Goran Ćulibrk
• Mentor: Marko Matulin (mentor)
• Committee member: Štefica Mrvelj (predsjednik povjerenstva)
• Committee member: Mario Muštra (član povjerenstva)
• Committee member: Ivan Grgurević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Transport); (Department of Information and Communications Traffic); Zagreb
• Defense date and country: 2018-09-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Postal and Telecommunications Traffic

Abstract

VoIP (Voice over Internet Protocol) tehnogloija predstavlja prijenos govora putem IP (Internet Protocol) mreže. Korištenjem različitih kompresijskih metoda ostvaruju se i različiti učinci na govornu uslugu u VoIP-u. Cilj ovog rada bio je na temelju provedene analize usporediti kompresijske metode (kodeke) korištene za uslugu VoIP. Kako bi analizu bilo moguće provesti, kroz rad su objašnjene komponente koje sačinjavaju ovu tehnologiju kao i načini ostvarivanja komunikacije. Navedeni su i objašnjeni protokoli koji obavljaju određene funkcije kao i sami kodeci. Za proizvoljno odabran primjer korištenja komunikacijske usluge, a na temelju izračunatog prometa i željenog faktora odbijanja poziva izračunat je broj potrebnih kanala koji je korišten u analizi potrebnog prijenosnog kapaciteta izvršenoj na različitim kodecima. Kodeci su analizirani s detekcijom tišine kao i bez iste. Rezultati su grafički predočeni.

Abstract (english)

VoIP (Voice over Internet Protocol) technology is tranfer of voice over IP (Internet Protocol) network. While using different compression methods, different speech service effects are also gained in VoIP. The aim of this paper was to compare the compression method (codecs) used for the VoIP service based on the conducted analysis. In order to make it possible to conduct an analysis, the components of this technology and the means of communication are explained through the paper. Explained protocols that perform certain functions as well as codecs themselves are listed and explained. For an arbitrarily selected example of use of a communication service, based on the calculated traffic and the desired probability of blocking, the number of required channels used in the analysis of the required transmission capacity executed on different codecs was calculated. Codecs were analyzed with silence detection as without the same. The results are graphically illustrated.

• Keywords: VoIP tehnologija; protokol; kodek; analiza; prijenosni kapacitet
• Keywords (english): VoIP tehnology; protocol; codec; analysis; bandwidth
• Language: croatian
• URN:NBN: urn:nbn:hr:119:746561
• Study programme: Title: Traffic and Transport; specializations in: Road Traffic and Transport, Railway Traffic and Transport, Water Traffic and Transport, Air Traffic and Transport, Postal Traffic, Information and Communication Traffic, Urban Traffic and Transport; Course: Information and Communication Traffic; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prometa (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prometa)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Repository: Faculty of Transport and Traffic Sciences
• Created on: 2018-10-24 13:37:22