1. [1] S. Haykin, “Cognitive radio: Brain-empowered wireless communications,” IEEE J. Sel. Areas Commun., vol.23, no.2, pp.201-220, 2005. 10.1109/jsac.2004.839380
2. [2] R. Zhang, “On peak versus average interference power constraints for protecting primary users in cognitive radio networks,” IEEE Trans. Wireless Commun., vol.8, no.4, pp.2112-2120, 2009. 10.1109/twc.2009.080714
3. [3] D. Xu and Q. Li, “Service outage constrained outage probability minimizing joint channel, power and rate allocation for cognitive radio multicast networks,” IEICE Trans. Fundamentals, vol.E98-A, no.8, pp.1854-1857, Aug. 2015. 10.1587/transfun.e98.a.1854
4. [4] Q. Li and D. Xu, “Power allocation for ergodic capacity and outage probability tradeoff in cognitive radio networks,” IEICE Trans. Commun., vol.E98-B, no.10, pp.1988-1995, Oct. 2015. 10.1587/transcom.e98.b.1988
5. [5] X. Kang, R. Zhang, Y.C. Liang, and H.K. Garg, “Optimal power allocation strategies for fading cognitive radio channels with primary user outage constraint,” IEEE J. Sel. Areas Commun., vol.29, no.2, pp.374-383, 2011. 10.1109/jsac.2011.110210