The Internet of Things (IoT) refers to the process of connecting physical objects to the internet. This includes household appliances, healthcare assets like medical devices, smart industries and cities. Due to the drastic increase of data generated from the IoT devices, relying on a centralized cloud infrastructure has fundamental limitations. For example, high network latency and network bandwidth are two main constraints that should be addressed. Edge Computing (EC) has emerged as the new computing paradigm in the IoT. Edge Computing covers the demand of the real-time response, and it moves data processing from the cloud to the Edge Nodes (ENs), hence increasing the quality of service for the IoT applications.