Digital communications is a rapidly evolving field of telecommunications that focuses on transmission of data between different points within a communication channel. The book aims to shed light on some of the vital aspects of digital communications such as framework and application of wireless sensor networks, performance and analysis of mobile networks, algorithms for mobile environments, etc. It contains contributions by eminent industry experts and scientists that will provide an up-to-date insight into the present status of this important field. Those in search of information to further their knowledge will be greatly assisted by this book.