Mobile communications refer to the complex networks and devices that enable digital transmission of voice, data or fax between locations and parties that are separate from each other. Mobile operation networks develop further as more and more users utilize mobile technologies. This book seeks to facilitate on-going research in the field of mobile communications and digital networks. This book, with its detailed analyses and data, will prove immensely beneficial to professionals and students involved in this area at various levels. The aim of this text is to present researchers that have transformed this discipline and aided its advancements. It aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline of mobile communications.