Abstract
The characteristics of MANET such as decentralized architecture, dynamic topologies make MANETs susceptible to various security attacks. Sequence number attacks are such type of security threats which tend to degrade the network functioning and performance by sending fabricated route reply packets (RREP) with the objective of getting involved in the route and drop some or all of the data packets during the data transmission phase. The sequence number adversary attempts to send a fabricated high destination number in the RREP packet which attracts the sender to establish a path through the adversary node. This paper proposes a proactive secure routing mechanism which is an improvement over the authors previously proposed scheme. It makes use of linear regression mechanism to predict the maximum destination sequence number that the neighboring node can insert in the RREP packet. As an additional security checkpoint, it uses a bait detection mechanism to establish confidence in marking a suspicious node as a malicious node. The proposed approach works in collaboration with the ad hoc on-demand distance vector routing (AODV) protocol. The simulation results depict that the approach improves the network performance in the presence of adversaries as compared to previously proposed scheme.
Highlights
The use of wireless network has increased tremendously due to the nonrestriction of the nodes to be stagnant physically [1]
In order to prove that the sequence number prediction based bait detection scheme (SNPBDS) approach provides better performance compared to the sequence number based bait detection scheme (SNBDS) approach, we compare the performance of both the approaches by varying various network parameters
The performance of SNPBDS approach is compared with the simple ad hoc on-demand distance vector routing (AODV) protocol, the AODV protocol with the adversary, and the SNBDS approach
Summary
The use of wireless network has increased tremendously due to the nonrestriction of the nodes to be stagnant physically [1]. MANETs are such infrastructure-less wireless networks where the communication between the nodes is performed through multihop paths [2]. MANETs have gained popularity in various domains such as military operations, natural calamities, maritime communications, vehicular computing, and remote weather forecasting due to the properties such as dynamic topology, easy configuration of nodes, and distributed administration [3, 4]. The proactive protocols have per-defined routes between the nodes in the network whereas the reactive protocols establish ondemand routes; i.e., they are created when there is a need of communication between the nodes. The reactive routing protocols have gained more popularity for such networks [4]. The reactive routing protocols are prone to different types of attacks
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