研究了Polar码自同构群代数特性,证明了块状下三角仿射(BLTA)群即为所有能表示成仿射形式的Polar码自同构群,证明了学术界的一项猜想。该项工作发表在通信领域旗舰会IEEE Global Communications Conference 2021上。提出了多项式复杂度的算法来计算pre-transformed polar codes的平均码谱,定量得到了预变换对polar codes码谱的改善,从码谱改善的角度解释了pre-transformed polar codes(包括CA-/PC-Polar/PAC)在大列表SCL译码下的增益来源。该项工作发表在被信息论与编码领域旗舰会议IEEE International Symposium on Information Theory 2021上。
与本成果相关的论文:
1.Yuan Li, Huazi Zhang, Rong Li, Jun Wang, Wen Tong, Guiying Yan and Zhiming Ma, The Complete Affine Automorphism Group of Polar Codes, Proceeding of 2021 IEEE Global Communications Conference, 1-6, 2021.
2.Yuan Li, Huazi Zhang, Rong Li, Jun Wang, Guiying Yan and Zhiming Ma, On the Weight Spectrum of Pre-Transformed Polar Codes, Proceeding of 2021 IEEE International Symposium on Information Theory, 1224-1229, 2021.