31,443 research outputs found
6G Mobile-Edge Empowered Metaverse: Requirements, Technologies, Challenges and Research Directions
The Metaverse has emerged as the successor of the conventional mobile
internet to change people's lifestyles. It has strict visual and physical
requirements to ensure an immersive experience (i.e., high visual quality, low
motion-to-photon latency, and real-time tactile and control experience).
However, the current communication systems fall short to satisfy these
requirements. Mobile edge computing (MEC) has been indispensable to enable low
latency and powerful computing. Moreover, the sixth generation (6G) networks
promise to provide end users with high-capacity communications to MEC servers.
In this paper, we bring together the primary components into a 6G mobile-edge
framework to empower the Metaverse. This includes the usage of heterogeneous
radios, intelligent reflecting surfaces (IRS), non-orthogonal multiple access
(NOMA), and digital twins (DTs). We also discuss novel communication paradigms
(i.e., semantic communication, holographic-type communication, and haptic
communication) to further satisfy the demand for human-type communications and
fulfil user preferences and immersive experiences in the Metaverse
A software-defined architecture for next-generation cellular networks
In the recent years, mobile cellular networks are undergoing fundamental changes and many established concepts are being revisited. New emerging paradigms, such as Software-Defined Networking (SDN), Mobile Cloud Computing (MCC), Network Function Virtualization (NFV), Internet of Things (IoT),and Mobile Social Networking (MSN), bring challenges in the design of cellular networks architectures. Current Long-Term Evolution (LTE) networks are not able to accommodate these new trends in a scalable and efficient way. In this paper, first we discuss the limitations of the current LTE architecture. Second, driven by the new communication needs and by the advances in aforementioned areas, we propose a new architecture for next generation cellular networks. Some of its characteristics include support for distributed content routing, Heterogeneous Networks(HetNets) and multiple Radio Access Technologies (RATs). Finally, we present simulation results which show that significant backhaul traffic savings can be achieved by implementing caching and routing functions at the network edge
Addressing the Challenges in Federating Edge Resources
This book chapter considers how Edge deployments can be brought to bear in a
global context by federating them across multiple geographic regions to create
a global Edge-based fabric that decentralizes data center computation. This is
currently impractical, not only because of technical challenges, but is also
shrouded by social, legal and geopolitical issues. In this chapter, we discuss
two key challenges - networking and management in federating Edge deployments.
Additionally, we consider resource and modeling challenges that will need to be
addressed for a federated Edge.Comment: Book Chapter accepted to the Fog and Edge Computing: Principles and
Paradigms; Editors Buyya, Sriram
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