1. Mitola, J.I., Maguire, G.Q.: Cognitive radio: making software radios more personal. IEEE Pers. Commun. 6(4), 13–18 (1999)
2. Brown, T.X.: An analysis of unlicensed device operation in licensed broadcast service bands. In: IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, pp. 11–29 (2005)
3. Kandeepan, S., Nardis, L., De Benedetto M.G., et al.: Cognitive satellite terrestrial radios. In: IEEE Global Communications Conference, pp. 1–6 (2010)
4. Liolis, K., Schlueter, G., Krause, J., et al.: Cognitive radio scenarios for satellite communications: the CoRaSat approach. In: Future Network and Mobile Summit, pp. 1–10 (2013)
5. Chen, P., Qiu, L.D., Wang, Y.: Joint optimization algorithm of detection threshold and power allocation for satellite underlay cognitive radio. J. Xi’an Jiao tong Univ. 47(6), 31–36 (2013). (In Chinese)