Abstract
Wireless local area networks(WLANs) work upon a shared medium and broadcast data frames via radio waves. These features let legitimate users connect to Internet conveniently at WLAN access points but also let a malicious attacker misuse network flexibly. Attackers can launch jamming attacks by exploiting vulnerabilities in 802.11, which is a dominant protocol used by WLAN. We discuss two jamming attacks, RTS and CTS jamming, and address their attacking conditions and threats. To defend against jamming attacks, a CUSUM based detection method is proposed, which can accurately detect jamming attacks with little computation and storage cost. When continuous attacking packets are sent out, a change-point will appear in a traffic sequence. Our detection method is capable to observe such change-points and then launch alarms. The efficiency of defense methods is verified by simulation results.
This work is supported by the National Natural Science Foundation of China(Science Department Special Dean Foundation) under Grant No. 60642006 and by China NJUPT Climbing Project Foundation NY206077.
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Chen, W., Chen, D., Sun, G., Zhang, Y. (2007). Defending Against Jamming Attacks in Wireless Local Area Networks. In: Xiao, B., Yang, L.T., Ma, J., Muller-Schloer, C., Hua, Y. (eds) Autonomic and Trusted Computing. ATC 2007. Lecture Notes in Computer Science, vol 4610. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73547-2_53
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DOI: https://doi.org/10.1007/978-3-540-73547-2_53
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