Message from General Chairs

It is our great pleasure to welcome you to the Second International Conference on Cognitive Radio Oriented Wireless Networks and Communications -- CrownCom 07. This year's conference grows from the success of CrownCom 06 in Mykonos Island, Greece, to become a major event for presentation of research results and experience reports in the field of cognitive radio and dynamic spectrum access. Crowncom provides a unique opportunity for researchers and practitioners to share their perspectives with others interested in the various aspects the field. The call for papers attracted submissions from countries in Asia, Europe, Africa, and North America. The program committee accepted 64 full papers and 14 papers reporting work-in-progress. The accepted papers cover a variety of topics, including Resource Management, Spectrum Sharing, Sensing, Ultra-Wideband Cognitive Radio Systems, Wireless Coexistence, and adaptive radio transceivers. In addition, the program includes panel sessions, tutorials, and keynote speeches by Prof. Victor Lawrence, Dr. Joseph Mitola and Dr. Robert O'Dea. We hope that the proceedings will serve as a valuable resource for research.

The program committee members deserve many thanks for their effort in putting the technical program together. They have worked very hard in reviewing papers and making valuable suggestions for the authors to improve their work. We also would like to express our gratitude to the external reviewers, for providing extra helps in the review process, and the authors for contributing their research result to the program. Putting together CrownCom 07 was a team effort. First, we would like to thank Dr. Imrich Chlamtac (Chair) and Dr. Honggang Zhang of the CrownCom 07 steering committee for their guidance and encouragement. We would also like to thank Prof. Thomas Hou, Prof. Alexander M. Wyglinski and Dr. Maziar Nekovee (Technical Co-Chairs), Dr. Cengiz Evci and Prof. Sumit Roy (Sponsorship Co-Chairs), Prof. Jon Peha and Prof. Kyutae Lim (Panel Co-Chairs), Dr. Stephen F. Bush and Prof. Subir Biswas (Tutorial Co-Chairs), Prof. K. P. Subbalakshmi and Prof. William Lehr (Special Sessions Co-Chairs), Dr. Sastry Kompella, Dr. Patrick Maille and Dr. Stefan Mangold (Publicity Co-Chairs) and Prof. R. N. Uma (Publication Chair) for their effort on various issues in organization, and Prof. Mainak Chatterjee (Local Arrangements Chair) his work on the local arrangements. Special thanks go to Ms. Kitti H. Kovacs (Conference Coordinator) for registration and many other tedious tasks and to Mr. Wenjing Wang for maintaining the CrownCom 07 web site. Finally, we would like to thank our sponsor, ICST, for their continued support of CrownCom meetings.

We hope that you will find this program interesting and thought-provoking and that the conference will provide you with a valuable opportunity to share ideas with other researchers and practitioners from institutions around the world.

Frederick Martin

Motorola, USA

Rajarathnam Chandramouli

Stevens Institute of Technology, USA

Dr. Frederick Martin Motorola, USA

Biography Dr. Frederick Martin is a researcher and manager for Motorola Labs in Plantation, Florida. His research interests include low power wireless systems and cognitive radio. He and is his team are currently involved in several activities relating to cognitive radio, including IEEE SCC41 and IEEE 802.22. Dr. Martin received the Bachelor of Science in Applied Science and Master of Engineering in Electrical Engineering from the Speed Scientific School at University of Louisville. He received his Ph.D. in Electrical Engineering from the University of Florida. In a long career at Motorola, he has been engaged design of both circuit and protocol design for wireless systems. Among his accomplishments, he was the architect for the first fractional-division phase-locked loop synthesizer IC and the team leader and architect for the first IC compliant with the IEEE 802.15.4 standard. Dr. Martin is a senior member of the IEEE and a Motorola Dan Noble Fellow. He holds 24 US Patents and numerous publications.

Prof. Rajarathnam Chandramouli Stevens Institute of Technology, USA

Biography Dr. Rajarathnam Chandramouli (Mouli) is the Thomas E. Hattrick Chair Associate Professor of Information Systems in the Department of Electrical and Computer Engineering at Stevens Institute of Technology. His research spanning the areas of wireless/multimedia networking and security is funded by the National Science Foundation (NSF), DoD, and industry. He is a recipient of the NSF CAREER Award. Dr. Chandramouli is the Founding Chair of the IEEE COMSOC Technical Subcommittee on Cognitive Networks. He is also a member of the Management Board of IEEE SCC 41 representing IEEE COMSOC. He has served as an Associate Editor for the IEEE Transactions on Circuits and Systems for Video Technology, and is currently an Associate Editor for the Journal on Advances in Multimedia. He is on the organizing committees of a number of IEEE conferences. Dr. Chandramouli has won numerous awards. Most recently, a paper on dynamic spectrum access authored with his student won the Best Student Paper Award in IEEE CCNC 2006. Another IEEE JSAC (2006) paper on open spectrum access has been recognized as a best recent paper by the Open Spectrum Foundation. He is a Co-founder, President and CEO of InStream Media, LLC, an interactive Internet media company.