1196 search results - page 20 / 240 » Performance Measures of Dynamic Spectrum Access Networks |
GLOBECOM
2008
IEEE
15 years 3 months ago
2008
IEEE
Abstract— We present a collaborative algorithm to enable opportunistic spectrum access for cognitive radios in the presence of multiple co-channel transmitters. A spectrum hole d...
101
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MOBIHOC
2012
ACM
12 years 12 months ago
2012
ACM
A key feature of wireless communications is the spatial reuse. However, the spatial aspect is not yet well understood for the purpose of designing efficient spectrum sharing mecha...
TSP
2010
14 years 4 months ago
2010
Effective spectrum sensing is a critical prerequisite for multi-channel cognitive radio (CR) networks, where multiple spectrum bands are sensed to identify transmission opportuniti...
101
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WOWMOM
2009
ACM
15 years 4 months ago
2009
ACM
Abstract— Spectrum-agile radios, also known as cognitive radios, have a great potential to improve spectrum utilization by enabling dynamic access to the spectrum. A key challeng...
95
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TWC
2011
14 years 4 months ago
2011
In cognitive radio networks, each cognitive transmission process typically requires two phases: the spectrum sensing phase and data transmission phase. In this paper, we investiga...