76 search results - page 8 / 16 » Performance Analysis of Primary User Detection in a Multiple... |
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract—We explore the performance tradeoff between opportunistic and regulated access inherent in the design of multiuser cognitive radio networks. We consider a cognitive radi...
GLOBECOM
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract— Quickest detection is applied in the spectrum sensing of cognitive radio systems when multiple secondary users collaborate with limited communication time slots. When t...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
Owing to the non-zero probability of the missed detection and false alarm of active primary transmission, a certain degree of performance degradation of the primary user (PU) from...
GLOBECOM
2008
IEEE
14 years 1 months ago
2008
IEEE
— We consider beamforming in a cognitive network with multiple primary users and secondary users sharing the same spectrum. In particular, we assume that each secondary transmitt...
ICC
2009
IEEE
14 years 2 months ago
2009
IEEE
— Spectrum handoff occurs when the primary users appear in the licensed band occupied by the secondary users. Spectrum handoff procedures aim to help the secondary users to vacat...