| Popis: |
We study in this work the performance of an LTE network offering video streaming services in the presence of impatient users. We consider a realistic modeling of the user's impatience behavior in a cellular network where video services, with different session durations, follow a Poisson process arrival, an exponential service time and an exponentially distributed patience duration whose rate depends on both the perceived bitrate and the video session length. We model our system using continuous-time Markov chain and we study the transient system to evaluate the transmission efficiency. We compute namely the efficiently carried traffic generated by fully watched video clips and the wasted traffic which is the traffic being uselessly carried when the user drops his connection before the end of the session. |
