Name
Abstract | ||
|---|---|---|
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 unaffected. To demonstrate the effectiveness and generality of ARES, we evaluate it in three wireless testbeds: (a) an 802.11n WLAN with MIMO nodes, (b) an 802.11a/g mesh network with mobile jammers and (c) an 802.11a WLAN with TCP traffic. We observe that ARES improves the network throughput across all testbeds by up to 150%. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1145/1658939.1658960 | CoNEXT |
Keywords | Field | DocType |
mobile jammers,popular rate adaptation algorithm,low power,degrade network performance,jamming attack,rate adaptation,anti-jamming reinforcement system,g mesh network,network throughput,power control,mitigating jamming,physical layer,network performance,ieee 802 11,mesh network | Mesh networking,IEEE 802.11,Computer science,Network packet,Power control,Computer network,Physical layer,Throughput,Jamming,Network performance | Conference |
Citations | PageRank | References |
28 | 1.14 | 12 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Konstantinos Pelechrinis | 1 | 692 | 48.45 |
| Ioannis Broustis | 2 | 425 | 29.27 |
| Srikanth Krishnamurthy | 3 | 1919 | 124.08 |
| Christos Gkantsidis | 4 | 1269 | 72.28 |