System and application performance of function placement strategies for virtualized mobile fronthaul/backhaul networks

In this paper, we focused on the function placement problem of mobile cellular networks on the premise of integrated control of the fronthaul and the backhaul network. We construct the analytical model of the problem to derive the end-to-end delay and packet loss rate for application traffic, and the power consumption of the whole system. Through numerical evaluations, we present that by properly placing the network functions of the fronthaul and the backhaul networks, it is possible to reduce the end-to-end delay time of application traffic significantly, while the power consumption and packet loss rate remain almost unchanged.