1140 search results - page 80 / 228 » A Purpose-Based Access Control Model |
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
Abstract— A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple...
ICDCSW
2003
IEEE
14 years 1 months ago
2003
IEEE
— Current Web servers use various API sets to access backend services. This model does not support service differentiation, overload control, caching of contents generated by bac...
DBSEC
2006
13 years 9 months ago
2006
Access control is a crucial concern to build secure IT systems and, more specifically, to protect the confidentiality of information. However, access control is necessary, but not ...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
— In this paper we propose Cognitive Medium Access (CMA), a protocol aimed at improving coexistence with a set of independently evolving WLAN bands. A time-slotted physical layer...
DRM
2003
Springer
14 years 1 months ago
2003
Springer
In this paper, we present our experiences concerning the enforcement of access rights extracted from ODRL-based digital contracts. We introduce the generalized Contract Schema (Co...