Title :
Autocorrelation — MTM: A compound detector for spectrum hole identification in low SNR
Author :
Rahman, Md Mamunur ; Charoenlarpnopparut, C. ; Suksompong, Prapun ; Taparugssanagorn, Attaphongse
Author_Institution :
Electron. & Commun. Eng., Thammasat Univ., PathumthanI, Thailand
Abstract :
After digital switch over of TV transmission FCC has reported that Cognitive Radios (CR) can opportunistically use the free TV band under certain constraint among which primary user (PU) detection at low SNR is of vital importance not to create interference to the TV receivers. Since then spectrum sensing at low SNR has become the prime research issue to find spatiotemporal information of the available spectrum hole into the TV band for CR applications. In this paper we have proposed an Autocorrelation-MTM for spectrum hole identification. It has been found that detection performance can be improved significantly in low SNR by the proposed Autocorrelation-MTM compared to MTM with added complexity.
Keywords :
cognitive radio; correlation methods; radio spectrum management; radiofrequency interference; signal detection; television receivers; FCC; SNR; TV receiver interference; TV transmission; autocorrelation-MTM; cognitive radio; compound detector; detection performance; digital switch; free TV band; primary user detection; spectrum hole identification; spectrum sensing; Complexity theory; Correlation; Detectors; Signal to noise ratio; TV; Autocorrelation; MTM; TV band; discrete prolate spheroidal sequence; low SNR;
Conference_Titel :
Electrical Information and Communication Technology (EICT), 2013 International Conference on
Conference_Location :
Khulna
Print_ISBN :
978-1-4799-2297-0
DOI :
10.1109/EICT.2014.6777858
