Ensuring high quality and safety of food products has become a key factor on one hand to protect and improve consumers health and, on the other one, to gain market share. For this reason, much effort in the last year has been devoted to the development of integrated and innovative Agriculture and Food (Agri-Food) supply chains management systems, which should be responsible, in addition to track and store orders and deliveries, to guarantee transparency and traceability of the food production and transformation process. In this paper, differently from traditional supply chains which are based on centralized systems, we propose a fully distributed approach, based on blockchain technology, to define a supply chain management system able to provide quality, integrity and traceability of the entire supply chain process. The proposed framework is based on the Hyperledger Fabric technology, which is a permissioned blockchain system: a prototype has been developed and, by using some use cases, we show the effectiveness of the approach.

The fourth industrial revolution related to the Internet of Things (IoT) is leading to the emergence of future smart cities and cyber-physical systems with a rapidly increasing of smart connected objects (such as personal devices, sensors, actuators). Therefore, companies such as Telcos, Cloud and Service Providers have to analyze a huge amount of data that probably lead to the reduction of available bandwidth and subsequent increase of network latency. In this context, Fog Computing and Mobile Edge Computing (MEC) can be suitable paradigms to solve this kind of problems. The exploitation of the heterogeneous environment allows a better performance for mission-critical and time-critical applications. In this paper we present a scenario that exploits the MECs in order to detect abnormal or critical events such as terrorist threats, natural and man-made disasters. The proposed solution allows cooperation among the Base Transceiver Stations (BTS) to rapidly notify the users which are close to the critical area.