Evaluation of IPTV Service Session Setup Time

This paper describes an algorithm for evaluation of SIP session set up time for IPTV services based on IMS as open mixed BCMP network. We suggest a model of IPTV network composed of seven functions. To evaluate session set up time we design a call flow diagram between STB and MS. First of all we determine call flow rate for a BCMP network and after that use decomposition and aggregation methods to estimate the service time for each function. We calculate session set up time as sum of all service intervals. A mathematical model of the open exponential queuing network is designed to estimate mean session set up time. We also suggest a numerical experiment for the algorithm with the initial data close to the real one. According to the initial data expected session set up time amounts by 2 seconds which is corresponded to the international standards.

IPTV, IMS, IPTV, BCMP network, IMS, session set up time, mathematical model