Paper Info
Title
Mitigating Malicious Interference Via Subcarrier-Level Radio Agility In Wireless Networks
Abstract
Malicious interference injection or jamming is one of the simplest ways to disrupt wireless communications. Prior approaches can alleviate jamming interference to a limited extent; they are especially vulnerable to a reactive jammer i.e., a jammer that injects noise upon sensing a legitimate transmission or wideband jamming. In this paper, we leverage the inherent features of OFDM (Orthogonal Frequency Division Multiplexing) to cope with such attacks. Specifically, via extensive experiments, we observe that the jamming signal experiences differing levels of fading across the composite sub-carriers in its transmission bandwidth. Thus, if the legitimate transmitter were to somehow exploit the relatively unaffected sub-carriers to transmit data to the receiver, it could achieve reasonable throughputs, even in the presence of the active jammer. We design and implement JIMS, a Jamming Interference Mitigation Scheme that exploits the above characteristic by overcoming key practical challenges. Via extensive testbed experiments and simulations we show that JIMS achieves a throughput restoration of up to 75% in the presence of an active jammer.
Year
DOI
Venue
2013
10.1109/ICNP.2013.6733575
2013 21ST IEEE INTERNATIONAL CONFERENCE ON NETWORK PROTOCOLS (ICNP)
Keywords
Field
DocType
ofdm modulation
Subcarrier,Transmitter,Wireless network,Wireless,Computer science,Fading,Computer network,Interference (wave propagation),Jamming,Orthogonal frequency-division multiplexing
Conference
ISSN
Citations 
PageRank 
1092-1648
1
0.36
References 
Authors
0
6
Name
Order
Citations
PageRank
Ahmed Osama Fathy Atya1114.78
Azeem Aqil2234.08
Shailendra Singh313610.54
Ioannis Broustis442529.27
Karthikeyan Sundaresan51671126.71
Srikanth Krishnamurthy61919124.08