10044 search results - page 1583 / 2009 » Authentication in Wireless Networks |
211
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WCNC
2008
IEEE
16 years 2 months ago
2008
IEEE
—We study a cognitive network consisting of multiple cognitive users communicating in the presence of a single primary user. The primary user is located at the center of the netw...
200
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AINA
2007
IEEE
16 years 2 months ago
2007
IEEE
Recently, several MAC protocols using directional antennas have been proposed for ad hoc networks, which are mainly evaluated by computer simulations. This paper develops a MAC pr...
209
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CISS
2007
IEEE
16 years 2 months ago
2007
IEEE
Relay-based cooperative communications can achieve spatial diversity gains, enhance coverage and potentially increase capacity. If considered for large networks, traditional relayi...
213
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GLOBECOM
2007
IEEE
16 years 2 months ago
2007
IEEE
—Previous work demonstrated that the improvements in spectral efficiency and link reliability can be obtained in wireless relay networks employing terminals with MIMO capability...
202
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GLOBECOM
2007
IEEE
16 years 2 months ago
2007
IEEE
Abstract— We consider two-hop communication of a delaysensitive, memoryless Gaussian source over two independent paths in an ad-hoc network. To capture the behavior an ad-hoc net...