Title :
An RF Receiver Detection Technique for Cognitive Radio Coexistence
Author :
Park, Sanghoon ; Larson, Lawrence E. ; Milstein, Laurence B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, San Diego, La Jolla, CA, USA
Abstract :
A receiver detection technique is proposed by measuring the low-level leakage signal from a nearby receiver local oscillator. The probabilities of false alarm and missed detection are derived to quantify the detection performance. The technique provides higher sensitivity than a radiometer and is robust to estimation error even if the power spectral density of the ambient noise is unknown.
Keywords :
cognitive radio; radio receivers; RF receiver detection technique; ambient noise; cognitive radio coexistence; false alarm probability; low-level leakage signal measurement; missed detection probability; receiver local oscillator; Bandwidth; Chromium; Detectors; Discrete Fourier transforms; Noise; Radiometry; Receivers; Cognitive radio (CR); detection; discrete Fourier transform (DFT); estimation error; false alarm; interference; local oscillator (LO) leakage; missed detection; radiometer; sensitivity; zero-padding method;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2010.2050955
