User facilitated congestion and attack mitigation

Yildiz, Mursel, Toker, Ahmet Cihat, Sivrikaya, Fikret, Camtepe, Seyit A., & Albayrak, Sahin (2012) User facilitated congestion and attack mitigation. In Pentikousis, Kostas, Aguiar, Rui, Sargento, Susana, & Aguero, Ramon (Eds.) Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering: Mobile Networks and Management, Springer Berlin Heidelberg, Aveiro, Portugal, pp. 358-371.

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The IEEE Wireless LAN standard has been a true success story by enabling convenient, efficient and low-cost access to broadband networks for both private and professional use. However, the increasing density and uncoordinated operation of wireless access points, combined with constantly growing traffic demands have started hurting the users' quality of experience. On the other hand, the emerging ubiquity of wireless access has placed it at the center of attention for network attacks, which not only raises users' concerns on security but also indirectly affects connection quality due to proactive measures against security attacks. In this work, we introduce an integrated solution to congestion avoidance and attack mitigation problems through cooperation among wireless access points. The proposed solution implements a Partially Observable Markov Decision Process (POMDP) as an intelligent distributed control system. By successfully differentiating resource hampering attacks from overload cases, the control system takes an appropriate action in each detected anomaly case without disturbing the quality of service for end users. The proposed solution is fully implemented on a small-scale testbed, on which we present our observations and demonstrate the effectiveness of the system to detect and alleviate both attack and congestion situations.

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ID Code: 58296
Item Type: Conference Paper
Refereed: Yes
Keywords: POMDP, User Centric Networks, Quality of Experience, Load Balancing in Wireless LAN
DOI: 10.1007/978-3-642-30422-4_26
ISBN: 978-3-642-30421-7
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DISTRIBUTED COMPUTING (080500) > Mobile Technologies (080502)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DISTRIBUTED COMPUTING (080500) > Networking and Communications (080503)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Past > Institutes > Information Security Institute
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Springer Berlin Heidelberg
Deposited On: 15 Mar 2013 01:20
Last Modified: 12 Jun 2013 15:37

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