405 search results - page 33 / 81 » Securing cognitive radio networks |
JSAC
2011
12 years 11 months ago
2011
—Cognitive radio is a promising paradigm to achieve efficient utilization of spectrum resource by allowing the unlicensed users (i.e., secondary users, SUs) to access the licens...
ICASSP
2011
IEEE
13 years 17 days ago
2011
IEEE
A problem of joint optimal bandwidth and power allocation in cognitive networks under fading channels is considered. It is assumed that multiple secondary users (SUs) share the sp...
INFOCOM
2009
IEEE
14 years 3 months ago
2009
IEEE
— Collaborative spectrum sensing among secondary users (SUs) in cognitive networks is shown to yield a significant performance improvement. However, there exists an inherent tra...
ICC
2009
IEEE
14 years 3 months ago
2009
IEEE
— Spectrum handoff occurs when the primary users appear in the licensed band occupied by the secondary users. Spectrum handoff procedures aim to help the secondary users to vacat...
ICC
2009
IEEE
14 years 3 months ago
2009
IEEE
