221 search results - page 10 / 45 » Dynamic spectrum access in open spectrum wireless networks |
GLOBECOM
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract—We propose a model-based channel access mechanism for cognitive radio-enabled secondary network, which opportunistically uses the channel of an unslotted primary network...
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GLOBECOM
2007
IEEE
14 years 11 months ago
2007
IEEE
—Open spectrum systems allow unlicensed secondary users equipped with cognitive radio to opportunistically access the spectrum underutilized by primary users. Cognitive radio has...
MOBIHOC
2007
ACM
15 years 9 months ago
2007
ACM
A number of studies have shown the abundance of unused spectrum in the TV bands. This is in stark contrast to the overcrowding of wireless devices in the ISM bands. A recent trend...
IPL
2010
14 years 8 months ago
2010
ICC
2008
IEEE
15 years 4 months ago
2008
IEEE
—Dynamic spectrum access has become a promising approach that can coordinate different users’ access to adapt to spectrum dynamics to improve spectrum efficiency. However, use...