Spectrum Sharing in Cognitive Radio Networks

This book discusses the use of the spectrum sharing techniques in cognitive radio technology, in order to address the problem of spectrum scarcity for future wireless communications. The authors describe a cognitive radio medium access control (MAC) protocol, with which throughput maximization has been achieved. The discussion also includes use of this MAC protocol for imperfect sensing scenarios and its effect on the performance of cognitive radio systems. The authors also discuss how energy efficiency has been maximized in this system, by applying a simple algorithm for optimizing the transmit power of the cognitive user. The study about the channel fading  in  the  cognitive  user  and  licensed  user  and   power  adaption  policy  in this scenario under peak transmit power and interference power constraint is also present in this book.

Shweta Pandit has received B. Tech. (Honours) degree from Himachal Pradesh University, Shimla, India in 2010. She also received M. Tech. and Ph D degree in Electronics and Communication Engineering from the Department of Electronics and Communication Engineering, Jaypee University of Information Technology, Waknaghat, Solan, India in 2012 and 2015, respectively. Currently, she is working as Assistant Professor in the Department of Electronics and Communication Engineering, Jaypee University of Information Technology, Waknaghat, Solan, India. Her area of research interests is next generation communication system, cognitive radio, wireless network, and capacity enhancement and interference reduction in wireless channel. 

Professor G. Singh received PhD degree in Electronics Engineering from the Indian Institute of Technology, Banaras Hindu University, Varanasi, India, in 2000. He was associated with Central Electronics Engineering Research Institute, Pilani, and Institute for Plasma Research, Gandhinagar, India, respectively, where he was Research Scientist. He had also worked as an Assistant Professor at Electronics and Communication Engineering Department, Nirma University of Science and Technology, Ahmedabad, India. He was a Visiting Researcher at the Seoul National University, Seoul, South Korea. At present, he is Professor with the Department of Electronics and Communication Engineering, Jaypee University of Information Technology, Wakanaghat, Solan, India. He is an author/co-author of more than 200 scientific papers of the refereed Journal and International Conferences. His research and teaching interests include RF/Microwave Engineering, Millimeter/THz Wave Antennas and its Applications in Communication and Imaging, Next Generation Communication Systems (OFDM and Cognitive Radio), and Nanophotonics. He has more than 14 years of teaching and research experience in the area of Electromagnetic/Microwave Engineering, Wireless Communication and Nanophotonics. He has supervised various Ph. D. and M. Tech. theses. He has worked as a reviewer for several reputed Journals and Conferences. He is author of two books “Terahertz Planar Antennas for Next Generation Communication” and “MOSFET Technologies for Double-Pole Four-Throw Radio-Frequency Switch” published by Springer.