Title:
Fuzzy
Trust Approach for Wireless Ad-hoc Networks
Abstract: A
wireless Ad-hoc network is a group of wireless devices that communicate
with each other without utilising any central management
infrastructure. The operation of Ad-hoc networks depends on the
cooperation among nodes to provide connectivity and communication
routes. However, such an ideal situation may not always be achievable
in practice. Some nodes may behave maliciously, resulting in
degradation of the performance of the network or even disruption of its
operation altogether. To mitigate the effect of such nodes and to
achieve higher levels of security and reliability, this paper expands
on relevant fuzzy logic concepts to propose an approach to establish
quantifiable trust levels between the nodes of Ad-hoc networks. These
trust levels are then used in the routing decision making process.
Using OPNET simulator, the proposed approach is validated and further
studied. The findings show that when the proposed approach is utilised,
the overall performance of the Ad-hoc network is significantly
improved.
Authors: H. Hallani and
S. A. Shahrestani