4 Management and Orchestration of Network Slices in 5G, Fog, Edge, and Clouds

Adel Nadjaran Toosi Redowan Mahmud Qinghua Chi and Rajkumar Buyya

4.1 Introduction

The major digital transformation happening all around the world these days has introduced a wide variety of applications and services ranging from smart cities and vehicle‐to‐vehicle (V2V) communication to virtual reality (VR)/augmented reality (AR) and remote medical surgery. Design and implementation of a network that can simultaneously provide the essential connectivity and performance requirements of all these applications with a single set of network functions not only is massively complex but also is prohibitively expensive. The 5G infrastructure public–private partnership (5G‐PPP) has identified various use case families of enhanced mobile broadband (eMBB), massive machine‐type communications (mMTC), and ultra‐reliable low‐latency communication (uRLLC) or critical communications that would simultaneously run and share the 5G physical multi‐service network [1]. These applications essentially have very different quality of service (QoS) requirements and transmission characteristics. For instance, video‐on‐demand streaming applications in eMMB category require very high bandwidth and transmit a large amount of content. By contrast, mMTC applications, such as the Internet of Things (IoT), typically have a multitude of low throughput devices. The differences between these use cases show that the one‐size‐fits‐all ...

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