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Adhoc wireless networks are defined as the category of wireless networks that utilize multihop radio relaying and are capable of operating without the support of any fixed infrastructure and hence they are also called infrastructureless networks. This type of network allows for spontaneous communication without previous planning between mobile devices. A variety of routing protocols for adhoc wireless...
MANET is a multi-hop network comprised of nodes that need to work in collaboration with each other for effective routing. But unfortunately, there is possibility of some nodes misbehaving for their own interests and disturbing the network. Therefore, reliability among nodes is very important in the network. Uncertainty is of prior importance, which deeply impacts a node's anticipation of others behavior...
This paper presents a trust based collaborative approach to mitigate black hole nodes in AODV protocol for MANET. In this approach every node monitors neighbouring nodes and calculates trust value on its neighbouring nodes dynamically. If the trust value of a monitored node goes below a predefined threshold, then the monitoring node assume it as malicious and avoids that node from the route path....
Communication in Mobile Ad-Hoc Network (MANET) is based on mutual trust between the participating nodes. Due to features of open medium, dynamic changing topology, lack of centralized monitoring and management, MANETs are vulnerable to various security attacks. Hence, finding a secure and trustworthy end-to-end path in MANET is a real challenge. The paper presents a solution for trustworthy path discovery...
For unpredictable manner of mobile ad hoc network (manet), due to mobility of nodes in network, the shortest path is not necessarily the better path. If we do not consider the stability of routing path, then wireless links may be easily broken. Hence it is important to find a route that endures a longer time. Recently, efforts in this field have dealt the parameters battery power or trust of a node...
This paper is concerned with fully distributed reputation-based mechanisms that improve security in MANETS. We introduce a number of optimisations to the current reputation schemes used in MANETs such as selective deviation tests and adaptive expiration timer that aim to deal with congestion and quick reputation convergence. We propose to use two different centrality measures for evaluation of the...
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