32 search results - page 2 / 7 » Power Control in Cognitive Radio Systems Based on Spectrum S... |
CISS
2008
IEEE
13 years 11 months ago
2008
IEEE
Abstract— Quickest detection is applied to frequency spectrum sensing in cognitive radio systems. Distribution change in frequency domain is detected for vacating secondary radio...
VTC
2010
IEEE
13 years 3 months ago
2010
IEEE
— We consider the sensing of the frequency spectrum based on energy detection for cognitive radios. It has been shown that the reliability of the sensing can be improved by using...
CORR
2008
Springer
13 years 4 months ago
2008
Springer
Abstract--We consider power control in cognitive radio networks where secondary users identify and exploit instantaneous and local spectrum opportunities without causing unacceptab...
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
—We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary c...
TSP
2010
12 years 11 months ago
2010
Abstract--A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral density (PSD) ma...