NDLI: End-to end delay performance analysis of various codecs on VoIP Quality of Service

Content Provider	IEEE Xplore Digital Library
Author	Sahabudin, S. Alias, M.Y.
Copyright Year	2009
Description	Author affiliation: Telekom Malaysia, Kuala Lumpur, MALAYSIA (Sahabudin, S.) \|\| Faculty of Engineering, Multimedia University, 63100 Cyberjaya, Selangor, MALAYSIA (Alias, M.Y.)
Abstract	Voice over Internet Protocol (VoIP) services are susceptible to Internet Protocol (IP) network burstiness causing packets drop and momentary gap in the call. The main objective of this paper is to study the effect of various voice codec schemes on the VoIP Quality of Service (QoS). Popular voice codecs such as G.711, G.729A Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP), G.723.1 and G.726 Adaptive Differential Pulse Code Modulation (ADPCM) are studied and VoIP simulation models are built. The voice codec performance is determined with the best performance codec identified. From the simulations, the end-to-end delay (Ta) results for each of the users were obtained. The results were averaged out to gain the average end-to end delay (Ta) for every simulation. From the simulation results it can be seen that for most of the locations, G.711 without using silence suppression has the highest average end-to-end delay (Ta). On the other hand, G.723.1 with silence suppression has the lowest average Ta.
Starting Page	607
Ending Page	612
File Size	656665
Page Count	6
File Format	PDF
ISBN	9781424455317
e-ISBN	9781424455331
DOI	10.1109/MICC.2009.5431426
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-15
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Codecs Protocols Web and internet services Quality of service Performance analysis IP networks Pulse modulation Internet telephony Delay Modulation coding
Content Type	Text
Resource Type	Article

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