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- W4301111034 abstract "A simple four node network in which cooperation improves the information-theoretic secrecy is studied. The channel consists of two senders, a receiver, and an eavesdropper. One or both senders transmit confidential messages to the receiver, while the eavesdropper tries to decode the transmitted message. The main result is the derivation of a newly achievable rate-equivocation region that is shown to be larger than a rate-equivocation region derived by Lai and El Gamal for the relay-eavesdropper channel. When the rate of the helping interferer is zero, the new rate-equivocation region reduces to the capacity-equivocation region over the wire-tap channel, hence, the new achievability scheme can be seen as a generalization of a coding scheme proposed by Csiszar and Korner. This result can naturally be combined with a rate-equivocation region given by Tang et al. (for the interference assisted secret communication), yielding an even larger achievable rate-equivocation region." @default.
- W4301111034 created "2022-10-04" @default.
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- W4301111034 date "2011-02-17" @default.
- W4301111034 modified "2023-09-26" @default.
- W4301111034 title "Improved Rate-Equivocation Regions for Secure Cooperative Communication" @default.
- W4301111034 doi "https://doi.org/10.48550/arxiv.1102.3500" @default.
- W4301111034 hasPublicationYear "2011" @default.
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