Network Selection Problems - QoE vs QoS Who is the Winner?

Abstract

In network selection problem (NSP), there are now two schools of thought. There are those who think using QoE (Quality of Experience) is the best yardstick to measure the suitability of a Candidate Network (CN) to handover to. On the other hand, Quality of Service (QoS) is also advocated as the solution for network selection problems. In this article, a comprehensive framework that supports effective and efficient network selection is presented. The framework  attempts to provide a holistic solution to network selection problem that is achieved by combining both of the QoS and QoE measures.  Using this hybrid solution the best qualities in both methods are combined to overcome issues of the network selection problem According to ITU-R (International Telecommunications Union – Radio Standardization Sector), a 4G network is defined as having peak data rates of 100Mb/s for mobile nodes with speed up to 250 km/hr and 1Gb/s for mobile nodes moving at pedestrian speed. Based on this definition, it is safe to say that mobile nodes that can go from pedestrian speed to speed of up to 250 km/hr will be the norm in future. This indicates that the MN’s mobility will be highly dynamic. In particular, this article addresses the issue of network selection for high speed Mobile Nodes (MN) in 4G networks. The framework presented in this article also discusses how the QoS value collected from CNs can be fine-tuned to better reflect an MN’s current mobility scenario.

DRX‐based energy‐efficient supervised machine learning algorithm for mobile communication networks

“…Although QoE depends on quality of service (QoS) metrics like packet loss and latency, a good (bad) QoS does not necessarily means a good (bad) QoE [46]. QoS metrics are specified by IT (Inactivity Timer) 50 (TTI) [29] n s (Step) 2 to 16 [29] 𝛼 (Observed silence time) 50 ms [22] 𝛽 (Prediction probability) 0.25 to 0.60 [22] I s (Voice signal impairments) 0 [52] I e (Equipment impairments factor) 10…”

“…In recent years, QoE has become fundamental in telecommunications, taking into account the evaluation of human experience when interacting with technology in a particular context [45]. Although QoE depends on quality of service (QoS) metrics like packet loss and latency, a good (bad) QoS does not necessarily means a good (bad) QoE [46]. QoS metrics are specified by the service and not by the user [47], while the QoE approach focuses on the user [48].…”