Mahmood Lakzaei - Azad university of Kerman, Department of Computer Engineering
Vahid Sattari-Naeini - Shahid Bahonar University of Kerman , Department of Computer Engineering
Mojdeh Akbari - Hatef University of Zahedan , Department of Computer Engineering

Converging the physical world with the human-made realm into one network is rather a present and promising approach called IoT. The blessing of the Cloud computing becomes, however, a burden on latency-sensitive applications, which require processing and storage mechanisms in their proximity to meet low-latency, location and better context-awareness requirements. Fog computing is a new concept that focuses on extending the Cloud paradigm to the edge of the Internet of Things, via providing communication, computing, and access management support. This review article includes works that have been already used in the IoT as well as potential collaboration-enabling technologies coming from related domains. This study of the state of the art allowed us to focus, first, on the importance that collaboration between Things has gained recently and, second, on key problems toward the real collaboration within a Fog Computing environment. As opportunities arise with the Fog computing concept, we presents the main aspects and perspectives to consider in a Fog computing platform. Furthermore, principal functional components, operational behaviour, and the flow of information within the architecture s middleware level (Mdl) have been described.

IoT, Fog Computing, Cloud Computing, IoT Architecture.