1. A. Sultana, X. Fernando, L. Zhao, An overview of medium access control strategies for opportunistic spectrum access in cognitive radio networks. Springer Peer-to-Peer Netw. Appl. 10(5), 1113–1141 (2017)
2. Federal Communications Commission, Spectrum policy task force report, November 2002
3. G. Taylor, C. Middleton, X. Fernando, A question of scarcity: spectrum and Canada’s urban core. J. Inform. Policy (2016). E-ISSN: 2158–3897
4. J. Mitola, Cognitive radio: an integrated agent architecture for software defined radio. Ph.D. thesis, KTH Royal Institute of Technology, Stockholm, 2000
5. I. Akyildiz, W. Lee, M. Vuran, S. Mohanty, Next generation/dynamic spectrum access/cognitive radio wireless networks: a survey. Elsevier Comput. Netw. 50, 2127–2159 (2006)