**Preface to "Security and Privacy for Modern Wireless Communication Systems"**

Wireless communication systems face security and privacy challanges, necessitating the development of novel cryptography designs, transmission strategies, network protocols, and regulations. The transition from 5G to 6G has significantly increased connectivity and information flow within wireless networks. Moreover, emerging applications, such as remote real-time medical services and mixed-type communications, demand stringent data confidentiality to protect sensitive information.

The rapid advancement of the Internet of Things (IoT) has revolutionized automation across various domains. However, the diverse design parameters inherent in IoT systems, including the packet length, transmission patterns, and time delays, present unique security and privacy challenges that require innovative solutions. Furthermore, integrating advanced technologies, such as intelligent reflection surfaces, edge/fog/cloud computing, blockchain, deep learning, and cyber twins, introduces opportunities and challenges for information security and users' privacy in wireless communication systems.

This book presents a collection of 15 articles authored by research experts in the field, focusing on the latest advancements in security and privacy for wireless communications. These articles explore various topics, including novel methods, emerging trends, and practical applications. The contributions encompass various application fields, providing valuable insights into addressing the evolving security landscape of wireless communication networks.

We aim to contribute to the existing body of knowledge and inspire future advancements in wireless communication security and privacy. The articles within this book serve as a valuable resource for researchers, practitioners, and policymakers seeking to deepen their understanding of the challenges and opportunities in securing wireless communication systems.

> **Tao Huang, Shihao Yan, Guanglin Zhang, Li Sun, Tsz Hon Yuen, YoHan Park, and Changhoon Lee** *Editors*
