1. Cognitive radio: brain-empowered;Haykin;Sel Areas Commun, IEEE J,2005
2. NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey;Akyildiz;Comput Netw,2006
3. Cooperative communications for cognitive radio networks;Letaief;Proc IEEE,2009
4. A. Ghasemi and E.S. Sousa, Collaborative spectrum sensing for opportunistic access in fading environments, In: Proceedings of 2005 first IEEE international symposium new frontiers in dynamic spectrum access networks, 2005. DySPAN 2005., p. 131-136, 2005.
5. G. Ganesan. and Y. Li, Cooperative spectrum sensing in cognitive radio networks, In: Proceedings of 2005 first IEEE international symposium new frontiers in dynamic spectrum access networks, 2005. DySPAN 2005, p. 137-143, 2005.