3712 search results - page 465 / 743 » Role-Based Access Control |
141
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AINA
2007
IEEE
15 years 11 months ago
2007
IEEE
In hierarchical distributed systems, shared data access can be controlled by assigning user groups single cryptographic keys that allow high level users derive low level keys, but...
106
Voted
BROADNETS
2007
IEEE
15 years 11 months ago
2007
IEEE
— The expected VoIP call capacity in a one hop IEEE 802.11b network with G.711 voice codec is about 85 simultaneous calls, but the actual observed capacity is only 5 calls even a...
147
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GLOBECOM
2007
IEEE
15 years 11 months ago
2007
IEEE
In this paper, cross-layer optimization approach is applied from video coding to the physical layer through Media Access Control (MAC) layer. We mainly focus on resource allocatio...
177
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HICSS
2007
IEEE
15 years 11 months ago
2007
IEEE
As one of the most important features, the Internet enables individuals to make their personal thoughts and opinions easily accessible to the global community of Internet users. N...
148
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
— This paper proposes a medium access control (MAC) algorithm, called Cooperative Diversity MAC (CD-MAC), which exploits the cooperative communication capability to improve robus...