332 search results - page 57 / 67 » Opportunistic Spectrum Access in Cognitive Radio Networks |
JSAC
2011
14 years 4 months ago
2011
This paper investigates the issue of dynamic resource allocation (DRA) in the context of multiuser cognitive radio networks. We present a general framework adopting generalized si...
103
click to vote
JSAC
2011
14 years 4 months ago
2011
Abstract—In cognitive radio networks (CRNs), detecting smallscale primary devices, such as wireless microphones, is a challenging, but very important, problem that has not yet be...
72
Voted
GLOBECOM
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract—Cognitive radio technologies have become a promising approach to increase the efficiency of spectrum utilization. Although cognitive radio has been intensively studied ...
GLOBECOM
2008
IEEE
15 years 4 months ago
2008
IEEE
— In this paper we study the complexity of spectrum assignment problems in cognitive radio networks (CRNs) in the presence of several constraints. Although optimal spectrum assig...
96
Voted
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
In cognitive radio (CR) networks, multi-CR cooperation typically takes place during spectrum sensing, to cope with wireless fading effects and the hidden terminal problem. The use...