156 search results - page 29 / 32 » Opportunistic Spectrum Access for Energy-Constrained Cogniti... |
SECON
2010
IEEE
13 years 3 months ago
2010
IEEE
Wireless communications over water may suffer from serious multipath fading due to strong specular reflections from conducting water surfaces. Cognitive radios enable dynamic spect...
GLOBECOM
2009
IEEE
13 years 9 months ago
2009
IEEE
We consider a problem where two selfish cognitive radio users try to share two channels on which they each have potentially different valuations. We first formulate the problem as ...
CORR
2008
Springer
13 years 5 months ago
2008
Springer
In this paper, we consider a cognitive radio (CR) network in which the unlicensed (secondary) users are allowed to concurrently access the spectrum allocated to the licensed (prim...
INFOCOM
2010
IEEE
13 years 4 months ago
2010
IEEE
Abstract—WiMAX with femto cells is a cost-effective nextgeneration broadband wireless communication system. Cognitive Radio (CR) has recently emerged as a promising technology to...
WCNC
2010
IEEE
13 years 4 months ago
2010
IEEE
— Previous works studied the effect of many system parameters on spectrum sharing opportunities where secondary users access the spectrum of primary users. However, a parameter t...