1. Mitola, J. (2000). Cognitive radio: an integrated agent architecture for software defined radio. PhD Dissertation, Royal Institute of Technology KTH, Stockholm, Sweden.
2. Federal Communications Commission (2002). Spectrum policy task force (ET-Docket No. 02-155). Tech. Rep.
3. Akyildiz, I. F., Lee, W.-Y., Vuran, M. C., & Mohanty, S. (2006). NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey. Computer Networks, 50, 2127–2159.
4. Federal Communications Commission (2004). Unlicensed operation in the TV broadcast bands and additional spectrum for unlicensed devices below 900 MHz in the 3 GHz band (Recommendation ET-Docket No. 04-186).
5. ECMA International (2009). Standard ECMA-392: MAC and PHY for operation in TV white space. Standard Cognitive Network Alliance.