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The increasing popularity of user-generated content and the high quality upstreaming capabilities of mobile phones indicate a prevalence of video traffic in the uplink of next generation mobile net works. Need arises for optimizing the network resource allocation while preserving the user satisfaction. In this paper, we propose a service-centric approach for uplink distribution of real-time user generated content based on the Quality of Experience (QoE) and popularity of the video content. In case of limited network resources, the proposed approach assigns more resources for popular contents while maintaining a minimum guaranteed QoE for the less popular ones. We compare our service-centric approach with a QoE-driven one that does not consider video popularity and evaluate both approaches for the uplink of an LTE system. The simulation results show that a significant gain in terms of average user satisfaction can be achieved

Holographic communication refers to real-time capturing, encoding, transporting and rendering of 3D representations, anchored in space, of remote persons shown as stereoscopic images or as 3D video in extended reality (XR) headsets that deliver a visual effect similar to a hologram.■ After several years of experience with video calls on smartphones and tablets, many users report that they are eagerly awaiting the chance to meet others digitally using immersive communication services such as 3D holographic augmented reality (AR) calls over 5G [1]. Compared with flat screen video, holographic communication can convey the subtleties of non-verbal communication and provide a sense of presence and immediacy that enhances the quality of human interaction. More than 50 percent of smartphone users [2] expect this technology to be available to them within a few years.Consumers are not the only ones longing for more authentic forms of digital communication. A recent study showed that the main barrier to remote working was the need for social interaction [3]. With the time spent working outside the office expected to increase in the coming decade, many office workers will require more immersive forms of digital interaction.Starting with AR glasses and holographic calls with spatial audio, office workers around the world expect to benefit from the emergence of haptic technology, which adds tactile sensing of digital objects [3]. More than half of them say they would like a digital workstation with multisensory presence at the office when working remotely. Similarly, in a recent online survey of 7,115 self-defined early adopters aged 15-69 in 14 major cities, 80 percent of the respondents said they expect to have telepresence facilities to socialize with remote colleagues by 2030. Holographic communication in5G networksThe potential for realizing holographic communication use cases in the years ahead is high. They are already anticipated in numerous consumer and enterprise areas ranging from attending family events as a hologram or meeting a doctor from home to remote presence at the office, expert help at a factory and immersive marketing. As soon as the ecosystem is ready to deliver these new experiences at a good price point and quality of experience (QoE), our research suggests that both private consumers and enterprises will be keen to use it.The ability to make holographic communication an everyday reality is dependent on three key factors. Firstly, there needs to be a desire that drives the behavioral change (the human factor). Secondly, the appropriate AR devices need to become available. Lastly, mobile networks must have the ability to support the holographic communication pipeline. The human factorUsers are the primary beneficiary of any type of human communication technology, and holographic communication is no exception. It is therefore essential to understand how they perceive it, along with the benefits from their perspective and their opinions about how to improve the user experience.The two major user groups f...

Abstract-We consider the joint upstreaming of live and ondemand user-generated video content over LTE using a Qualityof-Experience driven approach. We contribute to the state-of-theart work on multimedia scheduling in three aspects: 1) we jointly optimize the transmission of live and time-shifted video under scarce uplink resources by transmitting a basic quality in realtime and uploading a refined quality for on-demand consumption.2) We propose a producer-consumer deadline-aware scheduling algorithm that incorporates both the physical state of the mobile producer (e.g., cache fullness) and the scheduled playout time at the end-user. 3) We show that the scheduling decisions in 1) and 2) can be determined locally for each mobile producer. We additionally present an analytical framework for de-centralized scalable video transmission and prove that there exists an optimal solution to our problem. Simulation results for LTE uplink further demonstrate the significance of our proposed optimization on the overall user experience.