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SDR Implementation of Full-Duplex Jamming for Secrecy

Silva, A. H. ; Gomes, M. ; Vilela, J.P.

SDR Implementation of Full-Duplex Jamming for Secrecy, Proc Jornadas sobre Sistemas Reconfiguráveis - REC, Lisboa, Portugal, Vol. , pp. - , February, 2020.

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We consider secure wireless communications via physical-layer security mechanisms, particularly coding for secrecy mechanisms, combined with self-interference generation. We present results of a prototype implementation of a scrambled coding for secrecy mechanism with self-interference generation by the legitimate receiver. The prototype implementation is performed in real-world software-defined radio devices through a GNU Radio implementation. Our preliminary results shows a better error vector magnitude value on the legitimate receiver due the self-interference cancellation while Eve gets a more disperse constellation point values, leading to a worst decoding results.