Signal processing is the technology which is mainly concerned with processing and transmission of information via electronic signals. This book discusses various signal processing techniques in wireless networks. Some of the topics included in this book such as coding for wireless systems, security and cryptography for wireless, communication tools and methods for signal processing, wireless traffic and routing, are of utmost significance and bound to provide incredible insights to readers. The main objective of this book is to present emerging challenges and applications of signal processing techniques in wireless communication networks. It aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.