Abstract
The transport of voice over a packet-based network introduces jitter in the voice flow. The jitter is compensated in the dejittering buffer by artificially delaying the first packet of the flow over the so-called dejittering delay and then cyclically reading the packets from the dejittering buffer. In this paper, we first give a general numerical method to compute the dejittering delay. Then, we introduce and justify a closed-form heuristic formula to calculate the dejittering delay for a network consisting of identically loaded, independent nodes modelled as M/G/1 queues. We demonstrate the accuracy of the heuristic formula by means of some numerical examples. Since the heuristic formula is closed-form, accurate, and explicitly shows the influence of certain network parameters, it is the preferred method to dimension the dejittering buffer and to perform sensitivity studies.
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© 2000 Springer-Verlag Berlin Heidelberg
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De Vleeschauwer, D., Petit, G.H., Steyaert, B., Wittevrongel, S., Bruneel, H. (2000). An Accurate Closed-Form Formula to Calculate the Dejittering Delay in Packetised Voice Transport. In: Pujolle, G., Perros, H., Fdida, S., Körner, U., Stavrakakis, I. (eds) Networking 2000 Broadband Communications, High Performance Networking, and Performance of Communication Networks. NETWORKING 2000. Lecture Notes in Computer Science, vol 1815. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45551-5_32
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DOI: https://doi.org/10.1007/3-540-45551-5_32
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