Comparative Analysis of 5G Mobile Communication Network Architectures

Woosik Lee,Hoon Han,Woo Young Kwak,Eun Suk Suh

doi:10.3390/app10072478

Woosik Lee, Hoon Han + Show 2 more

Open Access

https://doi.org/10.3390/app10072478

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Abstract

Mobile communication technology is evolving from 4G to 5G. Compared to previous generations, 5G has the capability to implement latency-critical services, such as autonomous driving, real-time AI on handheld devices and remote drone control. Multi-access Edge Computing is one of the key technologies of 5G in guaranteeing ultra-low latency aimed to support latency critical services by distributing centralized computing resources to networks edges closer to users. However, due to its high granularity of computing resources, Multi-access Edge Computing has an architectural vulnerability in that it can lead to the overloading of regional computing resources, a phenomenon called regional traffic explosion. This paper proposes an improved communication architecture called Hybrid Cloud Computing, which combines the advantages of both Centralized Cloud Computing and Multi-access Edge Computing. The performance of the proposed network architecture is evaluated by utilizing a discrete-event simulation model. Finally, the results, advantages, and disadvantages of various network architectures are discussed.

Highlights

With the emergence of the smartphone, the amount of data traffic has been growing exponentially since 2008
The standard from European Telecommunication Standard Institute (ETSI) takes into account that edge clouds can connect to nearby edge clouds for mobile application purposes, the case study presented in this study primarily focuses on computational offloading from edge clouds to the central cloud, which is not related to the task transfer from an edge cloud to another edge cloud, justifying the assumption made
In the simulation environment and conditions assumed in the case study, HCC architecture processed tasks well within the allowed specification under the normal condition, it was slower than processing times by the Multi-access Edge Computing (MEC) architecture

Summary

Introduction

With the emergence of the smartphone, the amount of data traffic has been growing exponentially since 2008. The main concept of the eMBB is to extend frequency resources to a millimeter Wave (mmWave) above 6 GHz. mMTC is defined as a network capacity to simultaneously accommodate millions of devices in an area of 1 km. Among the main features of 5G, URLLC can be recognized as the most distinguished feature that differentiates 5G from previous generations of mobile communication technologies. Prior to the discussion of the URLLC, the mobile network architecture needs to be defined. A mobile network can be sub-divided into radio access network and core network. For 5G standard, significant efforts have been made to reduce the latency of radio access networks, including the use of mini-slots and shortened Transmission Time Interval [1,2,3,4,5]

Methods

Discussion

Conclusion