122 search results - page 4 / 25 » Cost constrained spectrum sensing in cognitive radio network... |
JSAC
2008
13 years 4 months ago
2008
We propose the cross-layer based opportunistic multi-channel medium access control (MAC) protocols, which integrate the spectrum sensing at physical (PHY) layer with the packet sch...
GLOBECOM
2010
IEEE
13 years 2 months ago
2010
IEEE
Abstract--Cognitive radio networks require fast and reliable spectrum sensing to achieve high network utilization by secondary users. Current optimization approaches to spectrum se...
GLOBECOM
2010
IEEE
13 years 2 months ago
2010
IEEE
There are many key problems of decision making related to spectrum occupancies in cognitive radio networks. It is known that there exist correlations of spectrum occupancies in tim...
ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
In cognitive radio (CR) networks, multi-CR cooperation typically takes place during spectrum sensing, to cope with wireless fading effects and the hidden terminal problem. The use...
ICASSP
2010
IEEE
13 years 5 months ago
2010
IEEE
— In cognitive radio, spectrum sensing is a key component to detect spectrum holes (i.e., channels not used by any primary users). Collaborative spectrum sensing among the cognit...