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- W2950734558 abstract "We consider a wiretap multiple-input multiple-output multiple-eavesdropper (MIMOME) channel, where agent Alice aims at transmitting a secret message to agent Bob, while leaking no information on it to an eavesdropper agent Eve. We assume that Alice has more antennas than both Bob and Eve, and that she has only statistical knowledge of the channel towards Eve. We focus on the low-noise regime, and assess the secrecy rates that are achievable when the secret message determines the distribution of a multivariate Gaussian mixture model (GMM) from which a realization is generated and transmitted over the channel. In particular, we show that if Eve has fewer antennas than Bob, secret transmission is always possible at low-noise. Moreover, we show that in the low-noise limit the secrecy capacity of our scheme coincides with its unconstrained capacity, by providing a class of covariance matrices that allow to attain such limit without the need of wiretap coding." @default.
- W2950734558 created "2019-06-27" @default.
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- W2950734558 date "2014-04-13" @default.
- W2950734558 modified "2023-09-27" @default.
- W2950734558 title "Achievable Secrecy Rates over MIMOME Gaussian Channels with GMM Signals in Low-Noise Regime" @default.
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- W2950734558 hasPublicationYear "2014" @default.
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