Summary
2020
Session Number:C02
Session:
Number:C02-2
On the Capacity of Gaussian Multiple-Access Wiretap Channels with Feedback
Bin Dai, Chong Li, Yingbin Liang, Zheng Ma, Shlomo (Shitz) Shamai,
pp.397-401
Publication Date:2020/10/18
Online ISSN:2188-5079
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Summary:
Two-user Gaussian multiple-access wiretap channel models with feedback are investigated. First, we show that the secrecy capacity regions of both theGaussian multiple-access wiretap channel (GMAC-WT) with feedback and the GMAC-WT with noncausal channel state information at the transmitters (GMAC-WT-NCSIT) and
feedback equal the capacity region of the Gaussian multiple-access channel (GMAC) with feedback and without the secrecy constraint and the state corruption. Next, we derive inner and outer bounds on the secrecy capacity region of the GMAC-WT with degraded message set and feedback. Our numerical results show that the perfect secrecy of the private message can be achieved without loss of any reliable transmission rate.