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Journal of Emerging Trends in Computing and Information Sciences >> Call for Papers Vol. 8 No. 3, March 2017

Journal of Emerging Trends in Computing and Information Sciences

Performance Evaluation of MPLS TE Signal Protocols with Different Audio Codecs

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Author Mahmoud M. Al-Quzwini, Shaimaa A. Sharafali
ISSN 2079-8407
On Pages 447-463
Volume No. 5
Issue No. 6
Issue Date July 1, 2014
Publishing Date July 1, 2014
Keywords MPLS, Traffic Engineering, VoIP, CODECS, CR-LDP, RSVP.


Abstract

This paper studies the performance of MPLS networks TE signal protocols with different voice codecs including PCM (64 Kbps), GSM FR (13 Kbps), G.723.1 (5.3 Kbps), G.726 (16 Kbps), G.728 (16 Kbps), G.729 (8 Kbps) and IS-641(7.4 Kbps). Simulation results show that the MPLS network with CR-LDP TE signal protocol outperforms the MPLS network with RSVP TE signal protocol in terms of the total amount of received voice packets, voice packet delay variation, voice jitter, and the number of maintained calls for all voice codecs. The results also show that G.723.1 codec type gives better results in terms of the number of maintained calls, but with least voice quality compared with other voice codecs.
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