Introduction to Wireless Networks: Principles, Architectures, and System Design Toward 5G and Beyond

Introduction to Wireless Networks: Principles, Architectures, and System Design Toward 5G and Beyond Wireless communication has become the backbone of the modern digital world. Smartphones, cloud services, autonomous vehicles, industrial automation, and global satellite networks all rely on advanced wireless infrastructures that connect billions of devices. Understanding how these systems work, from the physics of radio propagation to the architecture of large-scale cellular networks, is essential for engineers, researchers, and students entering the field. Introduction to Wireless Networks: Principles, Architectures, and System Design Toward 5G and Beyond provides a comprehensive and structured introduction to modern wireless networking. The book bridges the gap between communication theory, network architecture, and system-level design, guiding readers from fundamental concepts to emerging technologies shaping the future of wireless communication. The book begins with the foundations of computer networking and digital communication, introducing key concepts such as layered network architectures, packet switching, and performance metrics. It then explains the unique characteristics of wireless systems, including interference, mobility, time-varying channels, and medium access control. Building on this foundation, the book develops the physical-layer principles of wireless communication, including radio propagation, fading channels, modulation techniques, OFDM, and multiple-access systems. Advanced topics such as MIMO, beamforming, and interference management are explored to show how modern wireless systems achieve high spectral efficiency. The later chapters focus on system-level design and real-world network architectures. Readers will learn about the cellular concept, coverage planning, network densification, and the evolution of wireless systems from 1G to 5G. The book also examines modern architectures such as cloud-native networks, network slicing, and Open RAN. Finally, the book explores emerging technologies and future directions, including satellite and non-terrestrial networks, vehicular communication, industrial IoT, edge computing, AI-driven network control, and the vision of future 6G wireless systems. By integrating theory, system architecture, and practical design insights, this book provides readers with a holistic understanding of how modern wireless networks are built and how they will evolve in the coming decades. What You Will Learn Foundations of computer networking and wireless communication Wireless propagation, fading channels, and channel modeling Modulation techniques, OFDM, and multiple access methods MIMO systems, beamforming, and interference management Cellular network design and evolution from 1G to 5G Cloud-native architectures, Open RAN, and network slicing Cross-layer optimization, resource allocation, and edge computing Satellite networks, vehicular communication, and massive IoT The vision, technologies, and research challenges of future 6G systems Who This Book Is For This book is ideal for: Senior undergraduate and graduate students in electrical engineering, computer engineering, or telecommunications Researchers studying wireless networking and next-generation communication systems Engineers and professionals working in mobile communications, network design, or telecommunications infrastructure Whether you are learning the fundamentals or exploring future wireless technologies, this book provides a clear and rigorous guide to the principles and architectures that power modern wireless networks.