6FCC.ET Docket No 03-222 Notice of proposed rule making and orde[Z].2003,12.
7S.Haykin.Cognitive radio:brain-empowered wireless communications[J].IEEE Journal on Selected Areas in Communications,2005,23(2):201-220.
8Sendonaris,E.Erkip,B.Aazhang.User cooperation diversity part I:System description[J].IEEE Transactions on Communications,2003,51(11):1927-1938.
9T. M. Cover and A. A. E. Gamal. Capacity theorems for the relay channel. IEEE Trans. on Inf.Theory,1979,25(5):572-84.
10Bin Lin, Lin Lin. Site planning of relay stations in green wireless access networks: A genetic algorithm approach. Soft Computing and Pattern Recognition (SoCPaR), 2011 International Conference. 2011,10:14-16.
