Title :
Wideband spectrum sensing in modulated wideband converter based cognitive radio system
Author :
Zheng, Shilian ; Yang, Xiaoniu
Author_Institution :
Sci. & Technol. on Commun. Inf. Security Control Lab., Jiaxing, China
Abstract :
Wideband spectrum sensing is a fundamental problem in cognitive radio networks. In this paper, a wideband spectrum sensing procedure which consists of four steps, i.e., coarse support recovery, fine binary detection, band edges detection and clustering, for modulated wideband converter (MWC) based cognitive radio system at sub-Nyquist rate is proposed. Simulations show that with a sub-Nyquist sampling rate, the proposed spectrum sensing procedure can locate spectrum holes correctly.
Keywords :
cognitive radio; convertors; edge detection; modulation; radio networks; MWC; band edge detection; coarse support recovery; cognitive radio network system; fine binary detection; modulated wideband converter; spectrum hole location; subNyquist sampling rate; wideband spectrum sensing procedure; Cognitive radio; Compressed sensing; Image edge detection; Narrowband; Sensors; Wideband; cognitive radio; compressed sensing; modulated wideband converter; wideband spectrum sensing;
Conference_Titel :
Communications and Information Technologies (ISCIT), 2011 11th International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-1294-4
DOI :
10.1109/ISCIT.2011.6089713
