369 search results - page 12 / 74 » A Distributed Opportunistic Access Scheme for OFDMA Systems |
CORR
2010
Springer
14 years 9 months ago
2010
Springer
Opportunistic relaying is a simple yet efficient cooperation scheme that achieves full diversity and preserves the spectral efficiency among the spatially distributed stations. How...
VTC
2007
IEEE
15 years 3 months ago
2007
IEEE
—This paper presents an opportunistic feedback (OF) protocol that achieves the asymptotic sum-capacity of the fading broadcast channel (BC) with a limited amount of feedback. The...
ICC
2008
IEEE
15 years 3 months ago
2008
IEEE
Abstract—In this paper, we analyze three opportunistic multichannel MAC protocols that associate a newcoming terminal station to one of the access points available within its tra...
102
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JCM
2006
14 years 9 months ago
2006
Abstract-- Future generations of wireless systems require opportunistic spectrum access techniques to effectively detect and access temporarily unused spectrum bands. Cognitive rad...
102
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PERCOM
2011
ACM
14 years 4 months ago
2011
ACM
We describe AnonySense, a privacy-aware system for realizing pervasive applications based on collaborative, opportunistic sensing by personal mobile devices. AnonySense allows app...