509 search results - page 77 / 102 » Rate Adaptive Channel MAC |
102
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CORR
2010
Springer
14 years 12 months ago
2010
Springer
Adaptive orthogonal frequency division multiple access (OFDMA) has recently been recognized as a promising technique for providing high spectral efficiency in future broadband wire...
103
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TCOM
2010
14 years 10 months ago
2010
Abstract—This paper considers an uplink time division multiple access (TDMA) cognitive radio network where multiple cognitive radios (secondary users) attempt to access a spect...
118
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ICDCS
2011
IEEE
13 years 11 months ago
2011
IEEE
Abstract—Intentional interference constitutes a major threat for communication networks operating over a shared medium where availability is imperative. Jamming attacks are often...
105
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ICC
2009
IEEE
15 years 6 months ago
2009
IEEE
Abstract—In multiuser diversity systems, the impact of largescale fading on the total system performance such as link quality and system power has not been widely addressed. Cons...
105
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INFOCOM
2008
IEEE
15 years 6 months ago
2008
IEEE
— In this paper, we concentrate on opportunistic scheduling for multicast information. We pose the problem as a multicast throughput optimization problem. As a solution we presen...