Wireless Wide-Area Networks for Internet of Things: An Air Interface Protocol for IoT and a Simultaneous Access Channel for Uplink IoT Communication

This article proposes an Internet of Things (IoT) wide-area communication system concept deployed within the operator?s licensed macrocellular band, suitable for low-energy, low-complexity IoT modules with low-priority and infrequent IoT traffic. This article also proposes a simplified air interface protocol for IoT and a simultaneous access channel for uplink (UL) IoT communication. The proposed system concept can be considered either as an enhancement or as an overlay to the existing cellular systems.