Concatenated Polar Codes Scheme Based on Segmented Puncturing
CAO Yang①② ZHANG Han① TU Qiaoling① LI Xiaohong① PENG Xiaofeng①
①(School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing 400054, China) ②(School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 611731, China)
Abstract：Polar codes have outstanding error correction performance, but the code length of conventional polar codes is not compatible because of their coding method. To construct rate-compatible polar codes, a segmented puncturing method is proposed. Using the rate of polarization, the puncturing effect is measured and the
codeword is removed to make the largest rate of polarization, which is the optimal puncturing mode. As the first codeword of the optimal puncturing mode is 0, the parity check codes are introduced to detect the decoding error of preceding segments codeword. The decoding performance of the method is simulated, results
show that this method can obtain about 0.7 dB coding gain at 10–3 bit error rate compared with the traditional puncturing method, which can effectively improve the performance of the punctured polar codes.
