Securing Wireless Communications of the Internet of Things from the Physical Layer, An Overview
This is an incremental overview article that summarizes existing research on physical layer security for IoT, aimed at researchers and practitioners in wireless and IoT security.
The paper addresses the challenge of securing IoT wireless communications under low power constraints by reviewing physical layer approaches like key generation and encryption, highlighting their lightweight and practical implementation for effective security.
The security of the Internet of Things (IoT) is receiving considerable interest as the low power constraints and complexity features of many IoT devices are limiting the use of conventional cryptographic techniques. This article provides an overview of recent research efforts on alternative approaches for securing IoT wireless communications at the physical layer, specifically the key topics of key generation and physical layer encryption. These schemes can be implemented and are lightweight, and thus offer practical solutions for providing effective IoT wireless security. Future research to make IoT-based physical layer security more robust and pervasive is also covered.