1. Cognitive radio: making software radios more personal;Mitola;IEEE Pers. Commun.,1999
2. Cognitive radio networking and communications: An overview;Liang;IEEE Trans. Veh. Technol.,2011
3. Spectrum policy task force, Tech. Rep. ET Docket No. 02-135, Federal Communications Commission, November 2002.
4. Facilitating opportunities for flexible, efficient, and reliable spectrum use employing cognitive radio technologies, Tech. Rep. NPRM 03-322, Federal Communications Commission, December 2003.
5. Realizing the full potential of government-held spectrum to spur economic growth, Tech. Rep., President’s Council of Advisors on Science and Technology, July 2012.