This book provides a unified view on the state-of-the-art of cognitive radio technology. It includes a set of research and survey articles featuring the recent advances in theory and applications of cognitive radio technology for the next generation (e.g., fourth generation) wireless communication networks. The contributed articles cover both the theoretical concepts (e.g., information-theoretic analysis) and system-level implementation issues.

Fundamental Issues in Cognitive Radio.- Information Theoretic Analysis of Cognitive Radio Systems.- Coexistence and Dynamic Sharing in Cognitive Radio Networks.- Cooperative Spectrum Sensing.- A Protocol Suite for Cognitive Radios in Dynamic Spectrum Access Networks.- OFDM-Based Cognitive Radios for Dynamic Spectrum Access Networks.- Link Adaptation in OFDM-Based Cognitive Radio Systems.- UWB-Based Cognitive Radio Networks.- Degrees of Cooperation in Dynamic Spectrum Access for Distributed Cognitive Radios.- Cognitive MAC Protocols for Dynamic Spectrum Access.- Game Theoretic Learning and Pricing for Dynamic Spectrum Access in Cognitive Radio.- Decentralized Spectrum Management Through User Coordination.- Optimal Spectrum Sensing Decision for Hardware-Constrained Cognitive Networks.- Microeconomic Models for Dynamic Spectrum Management in Cognitive Radio Networks.- Analysis of Cognitive Radio Dynamics.