Cognitive Radio and Dynamic Spectrum Access
1. Edition January 2009
242 Pages, Hardcover
Wiley & Sons Ltd
Radio spectrum is not efficiently utilized because of a complicated and time-consuming radio regulation processes and inflexibility in standardization. Examining intelligent technologies to help overcome these barriers, Cognitive Radio for Dynamic Spectrum Access compiles expert guidance towards the applications of cognitive radio and dynamic spectrum access. Written by two experts in the field, with a foreword and cases from the "inventor of cognitive radio," the text includes a free download of the authors' source codes to round out this goldmine of information for R&D professionals in industry and academia.
Cognitive Radio for Dynamic Spectrum Access gives a comprehensive overview of the main concepts behind radio spectrum regulation, dynamic spectrum access and cognitive radio. Spectrum measurements are introduced to illustrate the inefficiencies in today's spectrum usage and the book also discusses enablers for horizontal and vertical spectrum sharing. Among others a game-theory-based approach for spectrum sharing is described and evaluated. Institution and standardisation approaches in academic research and industry are highlighted including IEEE SCC41, 802.11k/n/s/y and 802.22 which lead towards commercial exploitation of cognitive radio. In conclusion, this book looks at the initial steps towards the vision of true cognitive radio and the potential impact on telecommunication business.
* Introduces the benefits and challenges of cognitive radio
* Presents cognitive radio in research and industry and covers implications for operators from the perspective of a telecom operator
* Examines how cognitive radio techniques will considerably change the wireless communication market.
List of Tables.
About The Authors.
1.1 Access to radio spectrum.
1.2 Artificial spectrum scarcity from unexploited frequencies.
1.3 Cognitive radio and dynamic spectrum access as solution.
1.4 This book 28.
2. RADIO SPECTRUM TODAY - REGULATION AND SPECTRUM USAGE.
2.1 History and terminology.
2.2 Institutions that regulate radio spectrum.
2.3 Licensed and unlicensed spectrum.
3. RADIO SPECTRUM TOMORROW ? DYNAMIC SPECTRUM ACCESS & SPECTRUM SHARING.
3.1 Spectrum sharing and dynamic spectrum access: concepts and terminology.
3.2 Horizontal spectrum sharing.
3.3 Vertical spectrum sharing.
3.4 Taxonomy for spectrum sharing.
4. TOWARDS COGNITIVE RADIO - RESEARCH AND STANDARDIZATION.
4.1 Research programs and projects.
4.2 IEEE coordination, and the Coexistence Advisory Group IEEE 802.19.
4.3 IEEE SCC41/P1900.
4.4 Wi-Fi Wireless Local Area Networks IEEE 802.11.
4.5 WiMAX Wirless Metropolitan Area Networks IEEE 802.16.
4.6 Other standardization activities.
5. PROPOSED ENABLERS FOR REALIZING HORIZONTAL SPECTRUM SHARING.
5.1 IEEE 802.11 in unlicensed spectrum.
5.2 IEEE 802.16 in unlicensed spectrum.
5.3 Policies in spectrum usage.
5.4 Policy language.
5.5 Spectrum sharing games.
6. PROPOSED ENABLERS FOR REALIZING VERTICAL SPECTRUM SHARING.
6.1 Frequency division duplex for Wi-Fi: FDD WLANs.
6.2 Operator assisted cognitive radio with beaconing.
6.3 Spectrum load smoothing.
7. OUR VISION ? THE TRUE COGNITIVE RADIO.
7.1 Mitola's cognition circle and related cognitive radio definitions.
7.2 Cognitive radios can gain from delay-tolerant software radio.
7.3 DARPA XG provides implementation guidelines, including the access protocol.
7.4 Spectrum etiquette may stimulate cognitive behavior.
7.5 Network operators may assist dynamic spectrum access.
7.6 Business opportunities.
8 CONCLUDING REMARKS.
A. APPENDIX "JEMULA802".
B. APPENDIX "YOUSHI".
B.1 Modeling QoS requirements and demands.
B.2 Resource allocation and collisions.
B.3 Graphical user interface.
Lars Berlemann and Stefan Mangold have been delivering tutorials on cognitive radio at various research conferences such as IEEE PIMRC and the European Wireless Conference. As alumni from RWTH Aachen University, Germany, Lars Berlemann and Stefan Mangold graduated at the Chair of Communication Networks, ComNets, with Professor Bernhard H. Walke as PhD advisor. Their PhD theses (both awarded summa cum laude) are today considered to be important early research contributions to the field and are in the highest ranks in the number of downloads from the University's download servers. Together with Professor Walke, Drs Berlemann and Mangold coedited the Wiley book IEEE 802 Wireless Systems: Protocols, Multi-Hop Mesh/Relaying, Performance and Spectrum Coexistence which was published in November 2006.
Lars Berlemann is product manager in the product and innovation department of Deutsche Telekom, Germany. Stefan Mangold is manager at Swisscom, Switzerland, leading the access team of the product IT development group of Swisscom Network & IT. They both work for companies that operate mobile, fixed, and broadcast networks, and in addition provide services with excellent customer focus. Consequently, Drs Berlemann and Mangold understand and exploit the synergies between academic research focusing on excellence, and industry innovations focusing on commercial exploitation.
Lars Berlemann and Stefan Mangold share and disseminate what they learn. In parallel with their employment, they enjoy working with students. Lars Berlemann is guest lecturer at the Chair of Communication Networks, Technical University of Dortmund, Germany. Stefan Mangold is with ETH Zurich, Switzerland, Department of Computer Science, where he works as lecturer and visiting scientist. In addition to his scientific engineering background, Lars Berlemann holds a diploma in Business and Economics from RWTH Aachen. The comments and statements made in this book are from the authors and do not necessarily reflect the official position of their employers.