2B.Kusy,A.Ledeczi,M.Maroti,and L.Meertens.Node-density independent localization[A].In Proc.5th International Symposium on Information Proceeding in Sensor Nerwork s(IPSN'06),Nashville,TN,USA,2006.
4S.Huang,X.Liu,and Z.Ding,"Optimal Sensing-Transmission Structure for Dynamic Spectrum Access,"Proc.IEEE INFOCOM,2009.
5A.T.Hoang and Y.-C.Liang.Adaptive scheduling of spectrum sensing periods in cognitive radio networks. In Proc.of the IEEE GLOBECOM 2007,pages 3128-3132,November 2007.