Software-defined QoE measurement architecture

Quality of Experience (QoE) is a measure of a customer's experiences with a service (web browsing, TV broadcast, call to a Call Center). QoE focuses on the entire service experience, and is a more holistic evaluation than the more narrowly focused UX (user experience, focused on a software interface) and CX (customer experience, support focused). Measuring the bottleneck link bandwidth along a path is important for understanding the performance of many services. Existing tools to measure QoE are using distributed network probes to collect network information. It is a very costly monitoring architecture. This paper proposes a cost-effective QoE measurement architecture based on Software Defined Network (SDN) [1], adopting centralized control mechanism to measure multiple clients simultaneously. Experiments on Wi-Fi environment show great reducing of CAPEX and OPEX.