2007 search results - page 19 / 402 » SPECTRUM |
IJACTAICIT
2010
13 years 5 months ago
2010
In recent past, cognitive radio has come out to as a promising solution to the spectrum scarcity problem. It tends to increase the spectrum utilization by making use of underutili...
INFOCOM
2011
IEEE
12 years 12 months ago
2011
IEEE
—Dynamic spectrum allocation has proven promising for mitigating the spectrum scarcity problem. In this model, primary users lease chunks of under-utilized spectrum to secondary ...
INFOCOM
2012
IEEE
11 years 11 months ago
2012
IEEE
—Market based spectrum trading has been extensively studied to realize efficient spectrum utilization in cognitive radio networks (CRNs). In this paper, we utilize the concept o...
INFOCOM
2009
IEEE
14 years 3 months ago
2009
IEEE
—Dynamic spectrum access has been proposed as a means to share scarce radio resources, and requires devices to follow protocols that use resources in a proper, disciplined manner...
CISS
2008
IEEE
14 years 2 months ago
2008
IEEE
— We consider a network setting, where a single Service Provider (SP) provides wireless data services to a group of users in the downlink. The transmission model is similar to OF...