44 search results - page 8 / 9 » Cognitive Radio Networks: How Much Spectrum Sharing is Optim... |
GLOBECOM
2007
IEEE
13 years 11 months ago
2007
IEEE
This paper discusses how the cognitive radio concept can be extended to allow the system not only to manage shared resources such as spectrum, but to use this knowledge to optimize...
INFOCOM
2008
IEEE
13 years 11 months ago
2008
IEEE
Cognitive radio (CR) is a revolution in radio technology and is viewed as an enabling technology for dynamic spectrum access. This paper investigates how to design distributed alg...
ICC
2011
IEEE
12 years 4 months ago
2011
IEEE
—In cognitive radio (CR) networks, licensed spectrum that can be shared by secondary users (SUs) is always restricted by the needs of primary users (PUs). Although channel aggreg...
INFOCOM
2012
IEEE
11 years 7 months ago
2012
IEEE
Cognitive radio gives users the ability to switch channels and make use of dynamic spectral opportunities. However, switching channels takes time, and may disrupt the quality of a...
ICASSP
2010
IEEE
13 years 5 months ago
2010
IEEE
—We consider a cognitive radio network with distributed multiple secondary users, where each user independently searches for spectrum opportunities in multiple channels without e...