Schiller meticulously explains the fundamental building blocks of mobile communication systems, starting with the concept of cellular networks. He elucidates how these networks are structured to ensure efficient spectrum usage by dividing the coverage area into smaller cells, each served by a base station. The book then delves into various multiple access techniques like FDMA, TDMA, and CDMA, highlighting how they enable multiple users to share the same frequency band.

From the first generation (1G) analog systems to the latest advancements in 5G, the book traces the evolution of mobile communication technologies. Schiller discusses the key features, advantages, and limitations of each generation, providing a historical context for the rapid progress in this field. He explains how the transition from analog to digital, the introduction of packet switching, and the increasing demand for data rates have shaped the development of new standards.

A significant portion of the book focuses on the underlying principles of wireless transmission. Schiller covers essential topics such as signal propagation, fading effects, modulation techniques, and channel coding. He explains how these factors impact signal quality and reliability in wireless environments. Additionally, the book delves into antenna theory and design, emphasizing their crucial role in transmitting and receiving signals.