Serially concatenated multiple parity-check codes for secure communication
Xueqin Jiang, Enjian Bai, Jun Li, Changhong Liu, Yuwen Cao · 2016
In this paper, two secure codes are studied for a Gaussian wiretap channel. These two secure codes are derived from Multiple Parity-Check (MPC) codes, therefore, have low encoding complexities. These two codes are called M-SC-MPC codes and M-QC-MPC codes, respectively, in this paper. Theoretical security analysis show that these codes guarantees perfect secrecy against an eavesdropper. Simulation results show that the bit error rate of the proposed codes is close to 0.5 at low SNR region and very low at high SNR region over the AWGN channel with iterative decoding.