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2009
ACM

ARES: an anti-jamming reinforcement system for 802.11 networks

11 years 2 months ago
ARES: an anti-jamming reinforcement system for 802.11 networks
Dense, unmanaged 802.11 deployments tempt saboteurs into launching jamming attacks by injecting malicious interference. Nowadays, jammers can be portable devices that transmit intermittently at low power in order to conserve energy. In this paper, we first conduct extensive experiments on an indoor 802.11 network to assess the ability of two physical layer functions, rate adaptation and power control, in mitigating jamming. In the presence of a jammer we find that: (a) the use of popular rate adaptation algorithms can significantly degrade network performance and, (b) appropriate tuning of the carrier sensing threshold allows a transmitter to send packets even when being jammed and enables a receiver capture the desired signal. Based on our findings, we build ARES, an Anti-jamming REinforcement System, which tunes the parameters of rate adaptation and power control to improve the performance in the presence of jammers. ARES ensures that operations under benign conditions are unaffecte...
Konstantinos Pelechrinis, Ioannis Broustis, Srikan
Added 09 Nov 2010
Updated 09 Nov 2010
Type Conference
Year 2009
Where CONEXT
Authors Konstantinos Pelechrinis, Ioannis Broustis, Srikanth V. Krishnamurthy, Christos Gkantsidis
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