1. Cognitive radio: making software radios more personal;Mitola;IEEE Personal Communications,1999
2. Mitola J Cognitive radio: an integrated agent architecture for software defined radio PhD Thesis 2000
3. Cognitive radio: brain-empowered wireless communications;Haykin;IEEE Journal on Selected Areas in Communications,2005
4. FCC Notice of inquiry in the matter of additional spectrum for unlicensed below 900 mhz and in the 3 ghz band Technical Report 17 FCC Rcd 25632 2002
5. IEEE Funtional Requirements for 802.22 WRAN Standard 2006