ementation and operation scenarios and architectural frameworks of MEC have been addressed Multi-access edge computing in MEC motivations, dimensions [206] action. and applications, architectural frameworks, deployment scenarios, and market have been investigated main standard for MEC is ETSI ISG which is the home for MEC standardization. As presented in Table 1.9, ETSI has published several white papers that investigate the issues to implement and realize MEC with 5G. MEC reference architecture has been defined by ETSI in [201] as depicted in Fig. 1.11. MEC reference architecture in Fig. 1.11 can be categorized into three main entities as follows [165, 201, 206]: 1. Network-level entity: ETSI defined three main types of networks involving 3GPP, local, and external networks. 3GPP network is standardized by 3GPP such as 5G network. Meanwhile, the local network could be any local access network 1 A Comprehensive Study on 5G System MEC system level management level 3rd party ME apps platform MEC host management level MEC applications Virtualization infrastructure Local External Networks network network network Level Fig. 1.11 MEC conceptual framework [201] operated by wireless technologies such as Wi-Fi and Internet. On the other hand, the external network enables the third-party and industry networks such as private networks. 2. Host-level entity: It hosts the mobile edge (ME) components such as applications, platforms, virtualization infrastructure, and ME platform manager (MEPM). The virtualization infrastructure includes the computing, storage, and networking entities as well as hypervisor and OpenFlow switch protocol. ME applications operate as VMs on the virtualization infrastructure and interact with the MEC platform. The ME platform, in turns, provides the required functionalities and policies to execute the ME applications and access into MEC services. It provides ME service, service registry, and traffic rule control. On the other hand, MEPM is the main management entity at the MEC host level. It manages p