Polar-LDPC Concatenated Coding for the AWGN Wiretap Channel

Polar-LDPC Concatenated Coding for the AWGN Wiretap Channel

In this paper, a concatenated coding scheme based on polar codes and LDPC codes is proposed for the additive white Gaussian noise (AWGN) wiretap channel. We first analyze the bit error rate (BER) performance of the proposed coding scheme through the density evolution (DE). Then, the security gap tha...

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Veröffentlicht in:IEEE communications letters 2014-10, Vol.18 (10), p.1683-1686
Hauptverfasser: Zhang, Yingxian, Liu, Aijun, Gong, Chao, Yang, Guanpeng, Yang, Sixiang
Format: Artikel
Sprache:eng
Schlagworte:
AWGN channels
Bit error rate
Decoding
Encoding
Parity check codes
Security
Signal to noise ratio
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Zusammenfassung:In this paper, a concatenated coding scheme based on polar codes and LDPC codes is proposed for the additive white Gaussian noise (AWGN) wiretap channel. We first analyze the bit error rate (BER) performance of the proposed coding scheme through the density evolution (DE). Then, the security gap that our coding scheme can achieve is investigated. Finally, to adapt to the dynamic environments, we present a transmission scheme using rate compatible Polar-LDPC codes. Numerical results suggest that the proposed coding scheme is more effective and flexible than other existing secure coding schemes.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2014.2353811