1446 search results - page 78 / 290 » Network Access Control (NAC) |
103
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TWC
2008
14 years 9 months ago
2008
Abstract--We investigate the dynamic spectrum sharing problem among primary and secondary users in a cognitive radio network. We consider the scenario where primary users exhibit o...
103
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GLOBECOM
2008
IEEE
15 years 4 months ago
2008
IEEE
—We characterize the stability region of wireless, single-hop networks with time-varying imperfect channels. We define a joint scheduling and transmission rate control policy th...
PEWASUN
2006
ACM
15 years 3 months ago
2006
ACM
In this paper, we study end-to-end performance characteristics of S-MAC, an energy-aware medium access control (MAC) protocol for wireless sensor networks (WSN). WSNs are composed...
ECRTS
2007
IEEE
15 years 4 months ago
2007
IEEE
A critical resource in a distributed real-time system is its shared communication medium. Unrestrained concurrent access to the network can lead to collisions that reduce the syst...
TCOM
2010
14 years 8 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...