Title :
Dimensioning generalized voip sources in wan links
Author :
Estepa, Antonio ; Estepa, Rafael
Author_Institution :
Univ. of Seville, Seville
fDate :
12/1/2007 12:00:00 AM
Abstract :
The comfort noise generation (CNG) feature of current VoIP codecs can lead to severe inaccuracies in the dimensioning analysis done through traditional models based on multiplexing on-off sources. We adapt the fluid model to obtain an accurate loss prediction in the multiplexing process of those codecs equipped with CNG. Results are validated by simulations fed with VoIP traffic traces and demonstrate a significant accuracy improvement with respect to current on-off multiplexing approaches.
Keywords :
Internet telephony; codecs; multiplexing; telecommunication traffic; wide area networks; CNG; VoIP traffic; WAN link; codecs; comfort noise generation; fluid model; generalized VoIP sources; multiplexing on-off sources; Bandwidth; Codecs; Eigenvalues and eigenfunctions; Equations; Internet telephony; Noise generators; Predictive models; Steady-state; Traffic control; Wide area networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.070924
