Fuzzy sets and fuzzy logic: theory and applications
Fuzzy sets and fuzzy logic: theory and applications
Fuzzy Control
Detection and prevention of MAC layer misbehavior in ad hoc networks
Proceedings of the 2nd ACM workshop on Security of ad hoc and sensor networks
Selfish MAC Layer Misbehavior in Wireless Networks
IEEE Transactions on Mobile Computing
Handbook of Algorithms for Wireless Networking and Mobile Computing (Chapman & Hall/Crc Computer & Information Science)
DOMINO: Detecting MAC Layer Greedy Behavior in IEEE 802.11 Hotspots
IEEE Transactions on Mobile Computing
802.11 denial-of-service attacks: real vulnerabilities and practical solutions
SSYM'03 Proceedings of the 12th conference on USENIX Security Symposium - Volume 12
IEEE Communications Magazine
An effective strategy for greedy behavior in wireless ad hoc networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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The most commonly used medium access mechanism in WLAN is based on the CSMA/CA protocol. This protocol schedules properly the access to the medium among all competing nodes. However, in a hostile environment, such as wireless local area networks (WLANs), selfish or greedy behaving nodes may prefer to decline the proper use of the protocol's rules in order to increase their bandwidth shares at the expense of well behaving nodes. In this paper, we focus on one such misbehavior and in particular on the adaptive greedy misbehavior of a node in the context of wireless local area network environment. In such environment, wireless nodes compete to gain access to the medium and communicate directly with an access point (AP). In this case, a greedy node may violate the common rules in order to earn extra bandwidth upon its neighbors. In order to avoid its detection, this node may adopt intelligently different techniques and switch dynamically between each of them. To counter such a misbehavior, we propose the use of a fuzzy logic technique in a new detection scheme. This scheme, implemented in the access point, monitors the behavior of associated wireless nodes and reports any deviation from the proper use of the CSMA/CA protocol. The simulation results of the proposed scheme show its robustness and ability to detect and identify quickly most of the deviations of an adaptive cheater.