BibTeX
@MISC{Balan06reviewcommittee:,
author = {Vlad Balan and Jürgen Schönwälder and Lars Eggert},
title = {Review Committee:},
year = {2006}
}
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Abstract
I hereby certify that the current thesis is independent work that has The presence of voice-over-IP traffic in the Internet is constantly increasing, as it offers improved connectivity and quality-of-service comparable to classical telephony at costs that the rival circuit-switched telephony systems cannot match. This paper evaluates the audio quality of voice-over- IP calls that use the Datagram Congestion Control Protocol (DCCP), a congestion-controlled alternative for the User Datagram Protocol (UDP) that carries most voiceover-IP calls today. A framework for assessing the impact of the transport layer on VoIP streams is presented. The experimental results illustrate some of the problems that the proposed congestion control methods face in preserving the perceived quality of VoIP transmission. The contributions of the current thesis are twofold. It evaluates the performance of the currently proposed congestion control methods in transporting VoIP traffic, and tries to illustrate some of their possible shortcomings. It also establishes a testing methodology for evaluating
Keyphrases
review committee current thesis congestion control method independent work voice-over ip classical telephony perceived quality possible shortcoming voice-over-ip traffic user datagram protocol voip stream transport layer voip traffic audio quality voiceover-ip call today congestion-controlled alternative experimental result datagram congestion control protocol improved connectivity voip transmission
