This document describes the technical work and solutions of iNGENIOUS on air interface and device connectivity for next generation Internet-of-Things (IoT) applications. In short, this deliverable targets at explaining the communication performance evaluation and analysis of IoT technologies and devices, the proposed innovations for efficient air interface and versatile communication applied to heterogeneous IoT networks, the relationship of these technical efforts to the project’s architecture and use cases, as well as their exploitation potential.