This book provides comprehensive insights into the field of mobile communications and networks. It elucidates the different theories and practices related to this field. Mobile communications refer to the science and technology of wireless telephone services, which is used with the help of satellites. This text is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in the field of mobile communications. Those in search of information to further their knowledge will be greatly assisted by this textbook. It explores all the important aspects of this field in the present day scenario. It aims to serve as a resource guide for students and facilitate the growth of the discipline.