Giovedì 23 Gennaio 2014 ORE 10:45
Dipartimento di Matematica e Fisica Università degli Studi Roma Tre AULA 311 (SEMINARI) Largo San L. Murialdo,1
Jamming techniques require just moderate resources to be deployed, while their effectiveness in disrupting communications is unprecedented. In this talk we introduce several contributions to jamming mitigation. In particular, we introduce a novel adversary model that has both (unlimited) jamming reactive capabilities as well as powerful (but limited) proactive jamming capabilities. Under this dreadful but yet realistic adversary model, the communication bandwidth provided by current anti-jamming solutions drops to zero. We then present Silence is Golden (SiG): a novel anti jamming protocol that, introducing a tunable, asymmetric communication channel, is able to mitigate the adversary capabilities, enabling the parties to communicate. For instance, with SiG it is possible to deliver a 128 bits long message with a probability greater than 99% in 4096 time slots in the presence of a jammer that jams all on-the-fly communications as well as the 74% of the silent radio spectrum—while competing proposals simply fail. The provided solution enjoys a thorough theoretical analysis and is supported by extensive simulation results, showing the viability of our proposal.
– Joint work with Roberto Di Pietro
Gabriele Oligeri is a Senior Research Engineer at the University of Roma Tre. He received the laurea degree in Computer Engineering from University of Pisa in 2005, and the Ph.D. in Information Engineering from the same University in 2010. He has been a Post-doc at CNR-ISTI for the period 2010-2011 and at University of Trento for the period 2011-2013. His research interests include security and privacy in distributed systems. – (Joint work with Roberto Di Pietro)