117 search results - page 10 / 24 » Quality-of-Service in Cognitive Radio Networks with Collabor... |
ICC
2008
IEEE
14 years 5 months ago
2008
IEEE
—Cognitive radio (CR) dynamically accessing inactive radio spectrum of the primary system (PS) at link level has attracted a lot of research interests. The cognitive radio networ...
PIMRC
2010
IEEE
13 years 8 months ago
2010
IEEE
We propose an opportunistic channel access scheme for cognitive radio-enabled secondary networks. In our work, we model the channel occupancy due to Primary User (PU) activity as a...
GLOBECOM
2007
IEEE
14 years 5 months ago
2007
IEEE
— Spectrum sensing is a key enabling functionality in cognitive radio (CR) networks, where the CRs act as secondary users that opportunistically access free frequency bands. Due ...
INFOCOM
2008
IEEE
14 years 5 months ago
2008
IEEE
Abstract—Distributed spectrum sensing (DSS) enables a Cognitive Radio (CR) network to reliably detect licensed users and avoid causing interference to licensed communications. Th...
ICC
2007
IEEE
14 years 5 months ago
2007
IEEE
— In cognitive radio networks, the secondary network (users) are allowed to utilize the frequency bands of primary network (users) when they are not currently being used. To supp...