272 search results - page 9 / 55 » Routing in cognitive radio networks: Challenges and solution... |
122
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INFOCOM
2009
IEEE
15 years 6 months ago
2009
IEEE
— Collaborative spectrum sensing among secondary users (SUs) in cognitive networks is shown to yield a significant performance improvement. However, there exists an inherent tra...
INFOCOM
2009
IEEE
15 years 6 months ago
2009
IEEE
—Cognitive radio has been proposed in recent years to promote the spectrum utilization by exploiting the existence of spectrum holes. The heterogeneity of both spectrum availabil...
127
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JSAC
2011
14 years 6 months ago
2011
—We consider a wireless cognitive radio network in which a set of secondary users (SUs) opportunistically utilize the wireless spectrum licensed to the primary users (PUs) to tra...
ICC
2009
IEEE
15 years 6 months ago
2009
IEEE
—In this paper, quality of service (QoS) provisioning for voice service over cognitive radio networks is considered. As voice traffic is sensitive to delay, the presence of prim...
VTC
2008
IEEE
15 years 6 months ago
2008
IEEE
— We consider a resource allocation problem for spectrum sharing in cognitive radio networks. Specifically, we investigate the joint subchannel, rate and power allocation for se...