Chapter 1. Physical Layer Security in Hybrid Satellite-Terrestrial Relay Networks -- Chapter 2. Secure Transmission with Directional Modulation Based on Random Frequency Diverse Arrays -- Chapter 3. Physical Layer Security in Cache-Enabled Heterogeneous Cellular Networks -- Chapter 4. Backash Light as a Security Vulnerability in Quantum Key Distribution Systems -- Chapter 5. Cooperative Physical Layer Secret Key Generation by Virtual Link Estimation -- Chapter 6. Physical Layer Security: Authentication, Integrity and Con dentiality -- Chapter 7. Secure Device Pairing Protocol Based on Wireless Channel Characteristics for Body Area Networks.

This book studies the vulnerability of wireless communications under line-of-sight (LoS) and non-LoS correlated fading environments. The authors theoretically and practically provide physical layer security analyses for several technologies and networks such as Fifth-Generation (5G) networks, Internet of Things (IoT) applications, and Non-orthogonal multiple access (NOMA). The authors have provided these under various practical scenarios, and developed theoretical aspects to validate their proposed applications. Presents physical layer security (PLS) under correlated fading environments, 5G wireless networks, and NOMA networks; Provides end-to-end analyses, combination of channel correlation and outdated CSI and their effects on PL; Includes contributions of PLS research written by global experts in academia and industry.