Abstract
In recent years, the number of objects connected to the internet have significantly increased. Increasing the number of connected devices to the internet is transforming today’s Internet of Things (IoT) into massive IoT of the future. It is predicted that, in a few years, a high communication and computation capacity will be required to meet the demands of massive IoT devices and applications requiring data sharing and processing. 5G and beyond mobile networks are expected to fulfill a part of these requirements by providing a data rate of up to terabits per second. It will be a key enabler to support massive IoT and emerging mission critical applications with strict delay constraints. On the other hand, the next generation of software-defined networking (SDN) with emerging cloudrelated technologies (e.g., fog and edge computing) can play an important role in supporting and implementing the above-mentioned applications. This paper sets out the potential opportunities and important challenges that must be addressed in considering options for using SDN in hybrid cloud-fog systems to support 5G and beyond-enabled applications.
Highlights
The number of connected devices to the internet is sharply increasing
Multi-access edge computing (MEC) is defined by European Telecommunications Standards Institute (ETSI) as a platform that provides IT and cloud computing capabilities within RAN in 4G, 5G and beyond, in close proximity to mobile subscribers
Application Placement in Cloud-Fog In network function virtualization (NFV)-based hybrid cloud-fog systems, application components can be implemented as VNFs and the application itself can be seen as a VNF forwarding graph (FG)
Summary
The number of connected devices to the internet is sharply increasing. It is predicted that the number of Internet of Things (IoT) devices worldwide will increase from around. A few years ago, traditional cloud computing, including one or a few large data centers (DCs), was considered to be a promising computing model to store and process a huge volume of data and offer many reliable and mission critical services with strict delay constraints to users As these centralized DCs are usually far away from end users and cannot provide ultra-low latency and high bandwidth connectivity, they are not suitable for supporting the emerging applications related to future massive IoT [3].
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