Title :
Cooperative wideband spectrum sensing with multi-bit hard decision in cognitive radio
Author :
Mehdawi, M.A. ; Riley, N.G. ; Ammar, Moataz ; Fanan, A. ; Zolfaghari, M.
Author_Institution :
Sch. of Eng., Univ. of Hull, Kingston upon Hull, UK
Abstract :
Cognitive radio offers an increasingly attractive solution to overcome the underutilization problem. A sensor network based cooperative wideband spectrum sensing is proposed in this paper. The purpose of the sensor network is to determine the frequencies of the sources and reduced the total sensing time using a multi-resolution sensing technique. The final result is computed by data fusion of multi-bit decisions made by each cooperating secondary user. Simulation results show improved performance in energy efficiency.
Keywords :
cognitive radio; cooperative communication; sensor fusion; signal detection; wireless sensor networks; cognitive radio; cooperative spectrum sensing; data fusion; multibit hard decision; multiresolution sensing technique; sensor network; underutilization problem; wideband spectrum sensing; Cognitive radio; Data integration; Energy resolution; Sensors; Signal to noise ratio; Transmitters; Wideband; Coarse sensing; Cooperative spectrum sensing; Data fusion; Fine sensing; Multi bit hard combination;
Conference_Titel :
Telecommunications Forum (TELFOR), 2013 21st
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-1419-7
DOI :
10.1109/TELFOR.2013.6716212
