174 search results - page 6 / 35 » Optimization of Periodic Channel Sensing by Secondary Users ... |
JSAC
2011
13 years 2 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...
INFOCOM
2010
IEEE
13 years 5 months ago
2010
IEEE
Recently, a cooperative paradigm for single-channel cognitive radio networks has been advocated, where primary users can leverage secondary users to relay their traffic. However, i...
INFOCOM
2010
IEEE
13 years 6 months ago
2010
IEEE
—Cognitive Radio Networks (CRNs) have recently emerged as a promising technology to improve spectrum utilization by allowing secondary users to dynamically access idle primary ch...
TSP
2010
13 years 2 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...
ICC
2009
IEEE
13 years 5 months ago
2009
IEEE
In this paper, we consider a secondary link sharing the spectrum with a primary link in a fading cognitive radio (CR) network. Instead of applying the conventional interference pow...