This book provides comprehensive coverage of mobile data networking and mobile communications under a single cover for diverse audiences including managers, practicing engineers, and students who need to understand this industry. In the last two decades, many books have been written on the subject of wireless communications and networking. However, mobile data networking and mobile communications were not fully addressed in a unified fashion. This book fills that gap in the literature and is written to provide essentials of routing protocols and arranged all chapters in increasing order of complexity. Hence it is advised that readers start reading this book from the beginning unless they have some previous knowledge of the subject. The first three chapters will help bring readers from the novice stage to a stage where they will have gained proper understanding fundamentals