1. Mobile broadband: the benefits of additional spectrum, FCC staff technical paper, October;Federal Communications Commission,2010
2. Spectrum policy task force report, Tech. Rep. ET Docket 02-155, November;Federal Communications Commission,2002
3. Cognitive radio: making software radios more personal;Mitola;IEEE Pers Commun,1999
4. Proactive channel access in dynamic spectrum networks;Yang;Phys Commun,2008
5. Markov chain existence and hidden markov models in spectrum sensing.;Ghosh,2009