%0 Journal Article
%T Wideband Sensing for Cognitive Radio Systems in Heterogeneous Next Generation Networks
%A Ahmed M. Barnawi
%J International Journal of Computer Networks
%D 2011
%I Computer Science Journals
%X Mobile Next Generation Network (MNGN) is characterized as heterogeneous network wherevarieties of access technologies are meant to coexist. Decisions on choosing an air interface thatmeets a particular need at a particular time will be shifted from the network¡¯s side to (a moreintelligent) user¡¯s side. On top of that network operators and regularities have come to therealization that assigned spectrum bands are not utilized as they should be. Cognitive radiostands out as a candidate technology to address many emerging issues in MNGN such ascapacity, quality of service and spectral efficiency. As a transmission strategy, cognitive radiosystems depend greatly on sensing the radio environment. In this paper, we present a novelapproach for interference characterization in cognitive radio networks based on wideband chirpsignal. The results presented show that improved sensing accuracy is maintained at tolerablesystem complexity. Remittance
%K Cognitive Radio
%K Spectrum Sensing
%K MNGN
%K Interference Characterization.
%U http://cscjournals.org/csc/manuscript/Journals/IJCN/volume3/Issue2/IJCN-96.pdf