209 search results - page 20 / 42 » Spectrum trading with insurance in cognitive radio networks |
TSP
2012
12 years 4 months ago
2012
Abstract—We consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive...
ICC
2009
IEEE
14 years 3 months ago
2009
IEEE
—In this paper, we present a composite hypothesis testing approach for cooperative spectrum sensing. We derive the optimal likelihood ratio test (LRT) statistic based on the Neym...
GLOBECOM
2009
IEEE
14 years 3 months ago
2009
IEEE
Abstract—Recent studies have been conducted to indicate the ineffective usage of licensed bands due to the static spectrum allocation. In order to improve the spectrum utilizatio...
INFOCOM
2012
IEEE
11 years 11 months ago
2012
IEEE
—The opening of under-utilized spectrum creates the opportunity of substantial performance improvement through cognitive radio techniques. However, the real network performance m...
INFOCOM
2012
IEEE
11 years 11 months ago
2012
IEEE
—In this paper, we tackle the spectrum allocation problem in cognitive radio (CR) networks with time-frequency flexibility consideration using combinatorial auction. Different f...