99 search results - page 4 / 20 » Distributed multiaccess in hierarchical cognitive radio netw... |
INFOCOM
2011
IEEE
12 years 9 months ago
2011
IEEE
Abstract—Market-based mechanisms offer promising approaches for spectrum access in cognitive radio networks. In this paper, we focus on two market models, one with a monopoly pri...
JSAC
2011
12 years 8 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...
CISS
2008
IEEE
14 years 7 days 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...
MOBICOM
2009
ACM
14 years 9 days ago
2009
ACM
Cognitive radio is an enabling technology that allows unlicensed users to opportunistically access the spectrum in order to enhance the spectrum efficiency. In this paper, we cons...
INFOCOM
2011
IEEE
12 years 9 months ago
2011
IEEE
—Cognitive radios (CRs) can mitigate the impending spectrum scarcity problem by utilizing their capability of accessing licensed spectrum bands opportunistically. While most exis...