Authors:
Eymen Ben Bnina
1
;
Olivier Camp
1
;
Chùng Tiê´n Nguyên
1
and
Hella Kaffel Ben Ayed
2
Affiliations:
1
ESEO, France
;
2
National School of Computer Science, CRISTAL Laboratory, University of Manouba, Tunisia
Keyword(s):
Trust models, context, ad hoc networks.
Related
Ontology
Subjects/Areas/Topics:
Enterprise Information Systems
;
Software Agents and Internet Computing
;
Telecommunications
;
Wireless and Mobile Computing
;
Wireless and Mobile Technologies
;
Wireless Information Networks and Systems
Abstract:
The global performance of a mobile ad hoc networks (manet) greatly depends on, both, the cooperation of participating nodes and the environment in which the nodes evolve. The willingness of a node to cooperate can be illustrated by the trust assessed to the node. Yet, existing trust models, designed for reliable wired networks, do not take into consideration possible communication failures between client and server. We believe, that in the case of ad hoc networks such factors should be considered when computing trust. In this article, we show how an interaction can be decomoposed in three separate phases : two communication phases for transporting the request to the server and the response back to the client, and one execution phase which represents the actual execution of the service by the server. We propose to define the communication environment using contextual attributes and to consider this context when assessing trust to a server. We discuss the possible uses of context in th
e field of trust computation in manets and define contextual attributes that seem important to consider when modelling and computing trust.
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