Abstract
In this paper, we discuss the critical characteristics of user experience in sixth generation (6G) cellular networks. We first describe cellular networks’ evolution through 5G and then discuss the enabling technologies and projected services in 6G networks. We note that these networks are markedly centered around expanded intelligence, end-to-end resource and topology synchronization, and the intrinsic support to low-latency, high-bandwidth communication. These capabilities make context-rich, cyberphysical user experiences viable. It thereby becomes necessary to define and identify the role of quality of experience in 6G networks, especially when it comes to network management. We elaborate on these expected challenges and allude to viable opportunities in emerging technologies.
Highlights
IntroductionConnectivity challenges will be more prominent in the context of the Internet of Things (IoT), where 24.6 billion “things” (e.g., devices) are expected to be connected in 2025
The network core underwent a change towards the IP multimedia subsystem (IMS), whereby a view of data-switched communications was introduced based on the session initiation protocol (SIP)
The cause is not necessarily singular, and the interaction of several factors may have resulted in the quality of experience (QoE)
Summary
Connectivity challenges will be more prominent in the context of the Internet of Things (IoT), where 24.6 billion “things” (e.g., devices) are expected to be connected in 2025 In addition to these increasing numbers, connectivity requirements are becoming more demanding. The evolution of QoE inference and use have included improvements on the manually aggregated scores, e.g., the mean opinion score (MOS); standardizing QoE mappings to network measurements of service delivery; association/correlation studies with user-end observations and responses; and more [22]. This evolution came in tandem with enhanced network delivery performance, especially after introducing IP-based services and smartphones in 2007.
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