2007 search results - page 64 / 402 » SPECTRUM |
131
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CHI
2009
ACM
16 years 4 months ago
2009
ACM
Participatory user interface design with adolescent users on the autism spectrum presents a number of unique challenges and opportunities. Through our work developing a system to ...
156
Voted
GLOBECOM
2009
IEEE
15 years 10 months ago
2009
IEEE
—We address the problem of collaborative sensing in cognitive radios. In a cognitive radio network, all the nodes may sense the spectrum simultaneously. They should then exchange...
121
Voted
ICASSP
2009
IEEE
15 years 10 months ago
2009
IEEE
In this paper we consider the problem of sampling far below the Nyquist rate signals that are sparse linear superpositions of shifts of a known, potentially wide-band, pulse. This...
123
Voted
CISS
2008
IEEE
15 years 10 months ago
2008
IEEE
Cognitive radio is a desirable technique for secondary users to utilize the spectrum gray space. In order to avoid intolerable interference to primary users, the transmission powe...
146
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GLOBECOM
2008
IEEE
15 years 10 months ago
2008
IEEE
— We consider the issue of fair share of the spectrum opportunity for the case of spectrum-overlay cognitive radio networks. Owing to the decentralized nature of the network, we ...