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The Gaussian wire-tap channel

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2 Author(s)

Wyner's results for discrete memoryless wire-tap channels are extended to the Gaussian wire-tap channel. It is shown that the secrecy capacity Cs is the difference between the capacities of the main and wire.tap channels. It is further shown that Rd= Cs is the upper boundary of the achievable rate-equivocation region.

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Information Theory, IEEE Transactions on  (Volume:24 ,  Issue: 4 )