PREFACE

With the exponential growth in the ways and means by which people need to communicate – data communications, voice communications, video communications, broadcast messaging, command and control communications, emergency response Communications, etc. – modifying radio devices easily and cost-effectively has become business critical. Software defined radio (SDR) technology brings the flexibility, cost efficiency and power to drive communications forward, with wide-reaching benefits response realized by service providers and product developers through to end users. Cognitive radio is a radio or system that senses, and is aware of, its operational environment and can dynamically and autonomously adjust its radio operating parameters accordingly by collaborating wireless and wired networks.

This book gives you a detailed explanation of software defined radio and cognitive radio technologies. It includes the hardware and software architecture, their functions and the benefits of using it. Also it describes the evolution of cognitive radio towards the future generation networks.