Title :
Polar-LDPC Concatenated Coding for the AWGN Wiretap Channel
Author :
Yingxian Zhang ; Aijun Liu ; Chao Gong ; Guanpeng Yang ; Sixiang Yang
Author_Institution :
Key Lab. of Mil. Satellite Commun., PLA Univ. of Sci. & Technol. (PLAUST), Nanjing, China
Abstract :
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.
Keywords :
AWGN channels; channel coding; codecs; error statistics; parity check codes; telecommunication security; AWGN wiretap channel; BER performance; DE; additive white Gaussian noise wiretap channel; bit error rate; concatenated coding scheme; density evolution; polar-LDPC codes; polar-LDPC concatenated coding; transmission scheme; AWGN channels; Bit error rate; Decoding; Encoding; Parity check codes; Security; Signal to noise ratio; Concatenation; LDPC codes; polar codes; security gap; wiretap channel;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.2353811
