A cognitive radio is a transceiver that is aware of its environment, the regulations governing its operation, and its users needs, priorities, and operational privileges. It can take intelligent action to configure itself to perform its mission based on that awareness and is capable of learning and reasoning from past experience."Cognitive Radio Engineering" is both a text and a reference book about cognitive radio architecture and implementation. It is intended for readers who want to design and build working cognitive radios. It provides a practical approach that differs from many existing titles that postulate and analyze or simulate ideal cognitive radios without considering how to build working prototypes. This book will take the reader from conceptual block diagrams through the design and evaluation of illustrative prototypes.Written by acknowledged experts in the field who have built working cognitive radio systems, this book will be essential reading for communications engineers working in academia or industry."