IMDEA Networks Institute Publications Repository

Jamming Mitigation by Randomized Bandwidth Hopping

Liechti, Marc and Lenders, Vincent and Giustiniano, Domenico (2015) Jamming Mitigation by Randomized Bandwidth Hopping. In: The 11th International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT 2015), 1-4 December 2015, Heidelberg, Germany.

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We present bandwidth hopping spread spectrum (BHSS), a novel technique to improve the jamming resistance of wireless communications. In BHSS, the bandwidth of a signal is hopped rapidly in a manner that is unpredictable to the jammer. We show in this work that by combining bandwidth hopping at the transmitter with adaptive filtering at the receiver, BHSS is able to improve the jamming resistance of the communication beyond the processing gain of conventional spread spectrum techniques such as DSSS and FHSS without an increase in RF spectrum requirements. We have designed and implemented a BHSS transmitter and receiver system on off-the-shelf software-defined radios. Our experimental results with different hopping patterns show that BHSS is able to boost the power advantage of spread spectrum communication by 8 to $20$\,dB for jammers of fixed bandwidth. When both transmitter and jammer hop randomly, the average power advantage we achieve with our system is 11.4 dB.

Item Type: Conference or Workshop Papers (Paper)
Uncontrolled Keywords: Wireless security; Jamming resistance; Bandwidth hopping; Interference filter; Spread spectrum; Software-Defined Radio.
Depositing User: Domenico Giustiniano
Date Deposited: 18 Dec 2015 12:35
Last Modified: 30 Nov 2016 09:52

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