This book is a comprehensive exploration of the cutting-edge advancements and security considerations in the field of wireless communication beyond the 5G and 6G standards. It provides a deep understanding of the evolving landscape of wireless communication technologies, focusing particularly on the physical (PHY) and medium access control (MAC) layers.FeaturesExplores emerging technologies such as cell-free massive MIMO, intelligent reflecting surfaces, advancements in non-orthogonal multiple access, and medium access control layer.Covers a wide range of topics in the field of wireless communication, from advancements in the physical layer to security challenges, cognitive radio networks, and applications in various domains.Includes chapters on security challenges and solutions in both the physical layer and MAC layer of 6G networks, highlighting the importance of security in modern wireless communication.Discusses the Internet of Vehicles (IoVs), electric vehicles, and healthcare applications in the context of beyond 6G.Delves into real-world applications in healthcare and wireless body area networks.It is primarily written for senior undergraduates, graduate students, and academic researchers in electrical engineering, electronics and communication engineering, telecommunication, wireless communication, and computer engineering.