706 search results - page 77 / 142 » Access Control: Policies, Models, and Mechanisms |
HICSS
2005
IEEE
14 years 2 months ago
2005
IEEE
In this paper we propose a conceptual model of virtual organizations as normative multiagent systems. The dynamic aspects of virtual organizations are modeled using aspects of spe...
QSHINE
2005
IEEE
14 years 2 months ago
2005
IEEE
Despite its support of prioritized services, the IEEE 802.11e Enhanced Distributed Channel Access (EDCA) cannot guarantee strict QoS required by real-time services such as voice a...
TMC
2011
13 years 3 months ago
2011
We consider the problem of optimal channel access to provide quality of service (QoS) for data transmission in cognitive vehicular networks. In such a network the vehicular nodes ...
SUTC
2008
IEEE
14 years 3 months ago
2008
IEEE
Recently proposed usage control concept and models extend traditional access control models with features for contemporary distributed computing systems, including continuous acce...
ICDE
2007
IEEE
14 years 3 months ago
2007
IEEE
Separation of duties (SoD) is a key security requirement for many business and information systems. Role Based Access Controls (RBAC) is a relatively new paradigm for protecting i...