Investigating the effects of encoder schemes, WFQ & SAD on VoIP QoS

Ajay Shrestha, Khaled M. Elleithy, Syed S. Rizvi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Voice Encoder Schemes, Weighted Fair Queuing (WFQ) and Speech Activity Detection (SAD) techniques affect the overall Quality of Service (QoS) of Voice over Internet Protocol (VoIP) services. VoIP is one of the most discussed and rapidly emerging technologies in telecommunication. We are slowly witnessing a change in telephony from Public Switched Telephone Network (PSTN) to IP based VoIP Network. Despite the benefits being enormous, the switch to VoIP hasn't been swift, primarily due to various performance (delay, jitter, packet loss, echo etc.) and security issues plaguing the VoIP telephony network. To achieve minimal QoS for telephony, the voice (packets) must be delivered within 150 ms to 200 ms. This paper presents a performance model to quantifying the influence of VoIP which gives an in-depth understanding of how Voice Encoder Schemes, WFQ and SAD influence VoIP QoS from a theoretical and implementation point of views.

Original languageEnglish (US)
Title of host publicationNovel Algorithms and Techniques in Telecommunications, Automation and Industrial Electronics
Pages501-505
Number of pages5
DOIs
StatePublished - Dec 1 2008
Event2007 Int. Conf. on Telecommunications and Networking, TeNe 2007, 2007 Int. Conf. on Industrial Electronics, Technology and Automation, IETA 2007, Part of the Int. Jt. Conf. on Computer, Information, and Systems Sciences, and Engineering, CISSE 2007 -
Duration: Dec 3 2007Dec 12 2007

Publication series

NameNovel Algorithms and Techniques in Telecommunications, Automation and Industrial Electronics

Other

Other2007 Int. Conf. on Telecommunications and Networking, TeNe 2007, 2007 Int. Conf. on Industrial Electronics, Technology and Automation, IETA 2007, Part of the Int. Jt. Conf. on Computer, Information, and Systems Sciences, and Engineering, CISSE 2007
Period12/3/0712/12/07

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Modeling and Simulation
  • Electrical and Electronic Engineering

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