55 search results - page 1 / 11 » Spectrum sharing for unlicensed bands |
JSAC
2007
13 years 4 months ago
2007
We study a spectrum sharing problem in an unlicensed band where multiple systems coexist and interfere with each other. Due to asymmetries and selfish system behavior, unfair and...
WIOPT
2010
IEEE
13 years 2 months ago
2010
IEEE
Abstract—Development of dynamic spectrum access and allocation techniques recently have made feasible the vision of cognitive radio systems. However, a fundamental question arise...
WIOPT
2011
IEEE
12 years 8 months ago
2011
IEEE
—Cellular operators have been offloading data traffic from their licensed bands to unlicensed bands through a large number of WiFi hotspots over the past years. Although this a...
GLOBECOM
2009
IEEE
13 years 11 months ago
2009
IEEE
—In 3G wireless technologies, competitive operators are assigned a fixed part of the spectrum from long-term auctions. This is known to lead to utilization inefficiencies becau...
GLOBECOM
2007
IEEE
13 years 10 months ago
2007
IEEE
— Recent studies indicate the presence of a significant amount of idle licensed spectrum, in different time periods and geographic locations. Prompted by the latest regulatory ch...