Peisong Li

Peisong Li

Working hard to be lucky.

Fog Computing, Cloudlet and Mobile Edge Computing

1 minute read

Published:

Abstract

Comparison of three Edge Computing (EC) Implementations: Fog Computing, Cloudlet and Mobile Edge Computing

EC implementation architectures

Fog Computing:

The Fog Computing implementation is a decentralized Computing infrastructure based on Fog Computing Nodes (FCNs) placed at any point of the architecture between the end devices and the cloud. The FCNs are heterogeneous in nature and thus can be based on different kinds of elements including but not limited to routers, switches, access points, IoT gateways as well as set-top boxes.

Mobile Edge Computing:

MEC can be defined as an implementation of Edge Computing to bring computational and storage capacities to the edge of the network within the Radio Access Network to reduce latency and improve context awareness. The MEC nodes or servers are usually co-located with the Radio Network Controller or a macro base-station. Extension：What is a Radio Access Network?

Cloudlet Computing:

A Cloudlet can be defined as a trusted cluster of computers, well connected to the Internet, with resources available to use for nearby mobile devices. A Cloudlet can be treated as ”data center in a box” running a virtual machine capable of provisioning resources to enddevices and users in real time over a WLAN network.

Comparison

| | Fog Computing | Mobile Edge Computing | Cloudlet Computing |–|–|–|– Node devices| Routers, Switches, Access Points, Gateways | Servers running in base stations | Data Center in a box Node location | Varying between End Devices and Cloud | Radio Network Controller/Macro Base Station | Local/Outdoor installation Software Architecture |Fog Abstraction Layer based | Mobile Orchestrator based | Cloudlet Agent based Proximity |One or Multiple Hops | One Hop | One Hop Access Mechanisms |Bluetooth, Wi-Fi, Mobile Networks | Mobile Networks | Wi-Fi

Reference:

[1] Dolui, Koustabh, and Soumya Kanti Datta. “Comparison of edge computing implementations: Fog computing, cloudlet and mobile edge computing.” 2017 Global Internet of Things Summit (GIoTS). IEEE, 2017.

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