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Adaptive ACK: A novel intrusion detection system to mitigate intended packet dropping in MANETs

Al-Roubaiey, A., Sheltami, T., Mahmoud, A., Shakshuki, E. and Daabaj, K. (2010) Adaptive ACK: A novel intrusion detection system to mitigate intended packet dropping in MANETs. In: 2010 International Arab Conference on Information Technology (ACIT 2010), 14 - 16 December, Benghazi, Libya


Unlike infrastructure wireless networks, mobile ad-hoc network (MANET) is an infrastructureless network where self-configuring mobile nodes connected by wireless links. Because of its decentralized property, these nodes relay on each other to store and forward packets. Most of the proposed MANET protocols assume cooperative behavior among its nodes. However, some nodes may exhibit different behaviors such as selfish. Thus, misbehaving nodes can disrupt the network operation and affect the network availability by refusing to cooperate to route packets due to their selfish or malicious behavior. Towards this end, this paper proposes a novel intrusion detection system. An adaptive acknowledgment scheme (AACK) is proposed to detect and exclude such misbehaving nodes. This scheme is developed to overcome watchdog weaknesses due to collisions and limited transmission power. To demonstrate the performance of our proposed scheme, simulation experiments are performed. The simulation results show that AACK scheme provides better network performance with less overhead than some existing DSR-based systems such TWOACK and Watchdog.

Item Type: Conference Paper
Murdoch Affiliation(s): School of Information Technology
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