199 search results - page 35 / 40 » Multiple antenna spectrum sensing in cognitive radios |
84
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TON
2012
12 years 12 months ago
2012
—Cognitive Radio (CR) technology has great potential to alleviate spectrum scarcity in wireless communications. It allows secondary users (SUs) to opportunistically access spectr...
TWC
2010
14 years 4 months ago
2010
Abstract--This letter analyzes the impact, from a networklayer perspective, of having a single cognitive radio transmitterreceiver pair share the spectrum with multiple primary use...
ICC
2011
IEEE
13 years 9 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...
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TSP
2010
14 years 4 months ago
2010
We consider decentralized multiantenna cognitive radio networks where the secondary (cognitive) users are granted simultaneous spectrum access along with the license-holding (prima...
JSAC
2011
14 years 4 months ago
2011
This paper investigates the issue of dynamic resource allocation (DRA) in the context of multiuser cognitive radio networks. We present a general framework adopting generalized si...