%0 Journal Article %A Aliasgari, Mohammad %A Fakhraie, Sied Mehdi %T Deep Out-of-Band Radiation Reduction By Using Joint Filterbank and Cancellation Carriers in Cognitive Radios %J International Journal of Information and Communication Technology Research %V 5 %N 2 %U http://ijict.itrc.ac.ir/article-1-156-en.html %R %D 2013 %K Filter-bank, cancellation carrier, deep spectral mask, out-of-band radiation, cognitive radio, %X A deep spectrum sculpting is necessary to enable coexistence between a cognitive radio (CR) user and a licensed user which has low dynamic range and is susceptible to interferences. In this paper, we propose to use joint filter-bank based multicarrier system and cancellation carriers to guarantee an almost free out-of-band interference transmission and keep the quality of services of licensed adjacent bands unchanged. We investigate the performance of the proposed method with different well-known existing methods from viewpoints of the average level of out-ofband power, spectral efficiency, and computational complexity. %> http://ijict.itrc.ac.ir/article-1-156-en.pdf %P 19-26 %& 19 %! %9 Research %L A-10-27-129 %+ %G eng %@ 2251-6107 %[ 2013