On secure transmission over parallel relay eavesdropper channel

Awan, Zohaib Hassan;Zaidi, Abdellatif;Vandendorpe, Luc
(2010) 48th Annual Allerton Conference on Communication, Control, and Computing — Location: Urbana-Champaign, IL, USA (29.September.2010)

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Authors
  • Awan, Zohaib HassanUCLouvain
    Author
  • Zaidi, AbdellatifUCLouvain
    Author
  • Vandendorpe, LucUCLouvain
    Author
Abstract
We study a four terminal parallel relay-eavesdropper channel which consists of multiple independent relay-eavesdropper channels as subchannels. For the discrete memoryless case, we establish inner and outer bounds on the rate-equivocation region. For each subchannel, secure transmission is obtained through one of the two coding schemes at the relay: decoding-and-forwarding the source message or confusing the eavesdropper through noise injection. The inner bound allows relay mode selection. For the Gaussian model we establish lower and upper bounds on the perfect secrecy rate. We show that the bounds meet in some special cases, including when the relay does not hear the source. We illustrate the analytical results through some numerical examples.
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Awan, Z. H., Zaidi, A., & Vandendorpe, L. (2010). On secure transmission over parallel relay eavesdropper channel. 48th Annual Allerton Conference on Communication, Control, and Computing. Published. 48th Annual Allerton Conference on Communication, Control, and Computing, Urbana-Champaign, IL, USA. https://doi.org/10.1109/ALLERTON.2010.5706998