Traffic modelling and bandwidth allocation algorithm for video telephony service traffic
Bong Joo Kim, Gang Uk Hwang, Yeon Hwa Chung · Journal of Industrial and Management Optimization · 2009
In this paper, we analyze the stochastic characteristics of themeasured video telephony service traffic and propose amathematical model of the video telephony service traffic based onthe analyzed stochastic characteristics. From our analysis, avoice traffic can be modelled by a renewal process withdeterministic inter-arrival times and fixed packet size. On theother hand, a video traffic is modelled by an on and off source,where on and off periods are according to gamma distributions withrespective parameters. Using the mathematical model, we estimatethe required bandwidth to satisfy a given Quality of Service (QoS)requirement for the video telephony service traffic. To show thevalidity of our analysis, numerical studies with the NS-2simulator are provided.