An ARQ-aided polar coding scheme for security transmission of the wiretap channel

In this paper, an Automatic Repeat Request (ARQ)-aided secure polar coding scheme for the wiretap channel is proposed, where the frozen bits of the codes are obtained through the feedback of the legitimate recipient. Then, security of the proposed scheme is investigated, and analytical work proves that, both the reliability condition and security condition can be satisfied, specifically for the non-degraded wiretap channel. Finally, some simulation results reveal that the proposed scheme can transmit confidential messages reliably and securely.

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