Applied Sciences, Vol. 14, Pages 2874: Analysing the Performance of a Trust-Based AODV in the Presence of a Flooding Attack

Applied Sciences, Vol. 14, Pages 2874: Analysing the Performance of a Trust-Based AODV in the Presence of a Flooding Attack

Applied Sciences doi: 10.3390/app14072874

Authors: Ali Alzahrani Nigel Thomas

Mobile ad hoc networks (MANETs) are wireless multi-hop networks that do not rely on any fixed infrastructure, unlike traditional networks. Nodes in MANETs are formed dynamically and are free to move in any direction at variable speeds. The special characteristics of MANETs make them vulnerable to flooding attacks, which can have a negative impact on their performance. Moreover, due to their nature, employing solutions designed for traditional networks is not feasible. One potential solution to enhance the performance of MANETs in the face of network attacks is to implement trust management. This paper evaluates the performance of Ad hoc On-Demand Distance Vector (AODV) Routing in the presence of a flooding attack. We propose a direct trust management scheme to detect and isolate malicious nodes and implement this scheme on AODV. We name the modified protocol Trusted AODV (TAODV) and, finally, compare the performance of AODV and TAODV when both are under a flooding attack to measure the improvement achieved by our suggested scheme.