Internet of Things and Wireless Physical Layer Security: A Survey

Internet of Things (IoT) has been a focus of research in the last decade with emphasis on the security aspects like wireless network security, communication security, sensor data security, integrity of physical signals and actuating devices. The existing security techniques are not suitable for IoT applications as the involved devices at the ground level have limited resources, low complexity, energy constraints etc. This survey analyzes various IoT concepts in terms of IoT elements, architecture and communication standards. We also analyze the existing wireless security techniques and security attacks at all the layers of the Open Systems Interconnection (OSI) model with special attention on applicability of wireless physical layer security (WPLS) techniques to achieve security for IoT devices.