332 search results - page 16 / 67 » Opportunistic Spectrum Access in Cognitive Radio Networks |
JSAC
2011
14 years 15 days 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...
IWCMC
2010
ACM
14 years 11 months ago
2010
ACM
To network cognitive radios that require spectrum sensing to identify transmission opportunities emerges as a critical technology to facilitate spectrum efficient wireless communi...
ICC
2009
IEEE
14 years 7 months ago
2009
IEEE
Abstract--By using cognitive radio technology, opportunistic spectrum access has the potential to solve the underused spectrum problem. In this paper, we employ class-based call ad...
ICC
2008
IEEE
15 years 4 months ago
2008
IEEE
Abstract— The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resour...
GLOBECOM
2009
IEEE
15 years 4 months ago
2009
IEEE
— We propose and analyze a novel decentralized mechanism that motivates otherwise non-cooperative stations to participate as relays in cooperative ARQ protocol. Cooperation incen...