This paper addresses the problem of specifying and
establishing secure collaborations between autonomous entities
that need to interact and depend on each other in order to
accomplish their goals. We call such collaborations missionoriented
dynamic communities. We propose an abstract model
for policy-based collaboration that relies on a set of task-oriented
roles. Nodes are discovered dynamically and assigned to one or
more roles, and then start enforcing the policies associated with
these ...
This paper addresses the problem of specifying and
establishing secure collaborations between autonomous entities
that need to interact and depend on each other in order to
accomplish their goals. We call such collaborations missionoriented
dynamic communities. We propose an abstract model
for policy-based collaboration that relies on a set of task-oriented
roles. Nodes are discovered dynamically and assigned to one or
more roles, and then start enforcing the policies associated with
these roles according to the description of the community. In
this paper we describe a basic set of management roles that
are needed to provide management and security functions for
dynamic communities. Policies are used to specify management
protocols as these can be easily modified to reflect different
adaptive strategies. We focus on collaboration between nodes
in the context of mobile ad-hoc networks. Our implementation
is based on a surveillance scenario using unmanned autonomous
vehicles (UAVs). However our approach to dynamic communities
could be applied to emergency services at a disaster site, search
and rescue applications or many military scenarios.
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