159 search results - page 8 / 32 » Dynamic Spectrum Access Using a Network Coded Cognitive Cont... |
MOBICOM
2009
ACM
14 years 2 months ago
2009
ACM
Cognitive relays form a special cooperation relationship among users in cognitive radio networks, and help increase the transmission rates of both primary users and secondary user...
WICON
2008
13 years 9 months ago
2008
We consider the problem of efficient opportunistic spectrum access in cognitive radio networks where there are multiple secondary users trying to share access to multiple channels...
MOBIHOC
2012
ACM
11 years 10 months ago
2012
ACM
Dynamic spectrum access is a maturing technology that allows next generation wireless devices to make highly efficient use of wireless spectrum. Spectrum can be allocated on an o...
TCOM
2010
13 years 6 months ago
2010
Dynamic spectrum access (DSA) is an integral part of cognitive radio technology aiming at efficient management of the available power and bandwidth resources. The present paper d...
INFOCOM
2010
IEEE
13 years 6 months ago
2010
IEEE
Abstract—The queueing performance of a (secondary) cognitive user is investigated for a hierarchical network where there are N independent and identical primary users. Each prima...