A Method Based on Puncturing Polar Codes for Physical Layer Security
Yi Ming①② Ji Xin-sheng①② Huang Kai-zhi①② Jin Liang①② Wang Jing②
①(National Digital Switching System Engineering and Technological Research Center, Zhengzhou 450002, China) ②(PLA Information Engineering University, Zhengzhou 450002, China)
Abstract：To solve the confliction between the security and reliability of physical layer security codes and improve the secrecy rate, a security coding method based on puncturing polar codes is proposed. In order to keep the security and reliability, the confidential information is mapped to the specific input proposition which could be decoded by legal receiver but be equivocal for eavesdropper based on channel polarization theory. By analyzing the check trees of polar codes, the puncturing pattern is designed based on the influences of outputs on confidential information which are described by three parameters. The theoretical analysis and simulation results verify that the proposed method is able to guarantee simultaneously the security and reliability while improving the efficiency of the confidential information.
易鸣, 季新生, 黄开枝, 金梁, 王婧. 面向物理层安全的一种打孔极化编码方法[J]. 电子与信息学报, 2014, 36(12): 2835-2841.
Yi Ming, Ji Xin-Sheng, Huang Kai-Zhi, Jin Liang, Wang Jing. A Method Based on Puncturing Polar Codes for Physical Layer Security. , 2014, 36(12): 2835-2841.
2014, Vol. 36 
