Title :
Performance analysis and comparative study of voice over IP using hybrid codec
Author :
Labyad, Y. ; Moughit, Mohammed ; Haqiq, Abdelkrim
Author_Institution :
Fac. of Sci. & Tech., Hassan 1st Univ., Settat, Morocco
Abstract :
This paper investigates and compares the performance of the popular VoIP codecs G.711, G.723.1 and G.729A over an IP network based on SIP architecture, using RTP as a transport protocol. This is based on different simulations in order to evaluate the performance of each codec and to find the optimal codec. For this objective this paper analyzes Quality of service (QoS) parameters, principally delay, jitter, Mean Opinion Score (MOS) and throughput. The OPNET Modeler 14.5 has been used for implementing this work and monitoring all results in order to choose the best codec for transporting the voice over an IP backbone.
Keywords :
IP networks; Internet telephony; codecs; delays; jitter; performance evaluation; quality of service; signalling protocols; transport protocols; G.711; G.723.1; G.729A; IP network; MOS; OPNET modeler 14.5; QoS parameters; RTP; SIP architecture; VoIP codecs; comparative study; delay; hybrid codec; jitter; mean opinion score; optimal codec; performance analysis; performance evaluation; quality of service parameters; transport protocol; voice over IP; Codecs; Delay; IP networks; Jitter; Protocols; Quality of service; Servers; G.711; G.723; G.729; Jitter; MOS; QoS; SIP; VoIP;
Conference_Titel :
Complex Systems (ICCS), 2012 International Conference on
Conference_Location :
Agadir
Print_ISBN :
978-1-4673-4764-8
DOI :
10.1109/ICoCS.2012.6458570
