The Cognitive Multiple Access Wire-Tap Channel

@article{Simeone2009TheCM,
  title={The Cognitive Multiple Access Wire-Tap Channel},
  author={Osvaldo Simeone and Aylin Yener},
  journal={2009 43rd Annual Conference on Information Sciences and Systems},
  year={2009},
  pages={158-163}
}
A cognitive Multiple Access Channel with a Wire-tapper (cMAC-WT) is studied, where one of the two encoders is cognitive, in the sense that it knows a priori the message of the other encoder. Both the discrete and Gaussian models are considered. General achievable rates and outer bounds to the secrecy capacity region are derived, and the secrecy capacity region is identified for the special cases of less noisy discrete cMAC-WT, degraded Gaussian cMAC-WT and degraded Gaussian cMAC-WT with… CONTINUE READING

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