Software Defined Mobile Networks (SDMN)

14QoE Management Framework for Internet Services in SDN-Enabled Mobile Networks

Marcus Eckert and Thomas Martin Knoll

Chemnitz University of Technology, Chemnitz, Germany

14.1 Overview

In order to achieve acceptable service quality, the broad spectrum of Internet services requires differentiated handling and forwarding of the respective traffic flows in particular within increasingly overloaded mobile networks. The 3GPP procedures allow for such service differentiation by means of dedicated GPRS Tunneling Protocol (GTP) tunnels, which need to be specifically set up and potentially updated based on the client-initiated service traffic demand. The software defined networking (SDN)-enabled quality monitoring (QMON) and enforcement framework for Internet services presented in this chapter is named Internet Service quality Assessment and Automatic Reaction framework and will be abbreviated as ISAAR herein. It augments existing quality of service functions in mobile as well as software defined networks by flow-based network-centric quality of experience monitoring and enforcement functions. The framework is separated in three functional parts, which are QMON, quality rules (QRULE), and quality enforcement (QEN). Today’s mobile networks carry a mixture of different services. Each traffic type has its own network transport requirements in order to live up to the user expectations. To observe the achieved transport quality and its resulting user service experience, network operators ...