1[1]FCC.Report and Order:Revision of part 15 of the commission's rules regarding ultra-wideband transmission system[S].Adopted February 14,2002,released July 15,2002.
2[2]MITOLA J.Cognitive radio for flexible mobile multimedia communications[C]//Mobile Multimedia Communications,IEEE International Workshop,1999.
3[3]MITOLA J.Cognitive radio:An integrated agent architecture for software defined radio[D].PhD Disserlation,Royal Inst Technok(KTH),Stockholm,Sweden,2000.
4[4]IEEE 802.22 working group on wireless regional area networks[EB/OL][2007-03-08].http://www.ieee802.org/22/.
6[6]LANSFORD J.UWB Coexistence and Cognitive Radio[C]//Ultra Wideband Systems,2004.
7[7]GRANELLI F,ZHANG H G.Cognitive ultra wide band radio:a research vision and its open challenges[C]// Networking with Ultra Wideband and Workshop on Ultra Wide Band for Sensor Networks,2005.Networking with UWB 2005.2nd International Workshop 2005:55-59.
8[8]ZHOU X F,YAZDANDOOST K Y,ZHANG H G,et al.Cognospectrum:spectrum adaptation and evolution in cognitive ultrawideband radio[C]//2005 IEEE International Conference 2005:713-718.
9[9]GYOUHWAN K,RAJESWARAN A,NEGI R.Joint power adaptation,scheduling and routing framework for wireless ad-hoc networks[C]// IEEE 6th Workshop on Signal Processing Advances in Wirless Communications,2005.