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Tsinghua Science and Technology

Keywords

physical layer security, two-way communication, feed back, one-time-pad, random secret key, secrecy rate region

Abstract

This paper investigates the achievable secrecy rate region of the Gaussian two-way wiretap channel, which describes the simultaneous secure two-way transmission of a confidential message. Through adjusting the time-sharing factor and the rate at which the random secret key is fed back, the allocation and optimization for the secrecy rates of two-way communication are achieved. Under peak and average power constraints, the achievable secrecy rate regions of the two-way communication are derived respectively.

Publisher

Tsinghua University Press

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