Journal of Systems Engineering and Electronics ›› 2020, Vol. 31 ›› Issue (1): 12-18.doi: 10.21629/JSEE.2020.01.02

• Electronics Technology • Previous Articles     Next Articles

A simplified decoding algorithm for multi-CRC polar codes

Haifen YANG*(), Suxin YAN(), Hao ZHANG(), Yan REN(), Xiangdong HU(), Shuisheng LIN()   

  • Received:2019-05-07 Online:2020-02-20 Published:2020-02-25
  • Contact: Haifen YANG E-mail:yanghf@uestc.edu.cn;sx_yan@126.com;zhanghao_sice@163.com;renyanstone@163.com;379482415@qq.com;sslin@uestc.edu.cn
  • About author:YANG Haifen was born in 1977. She received her Ph.D. degree in 2008 from the Department of Communication and Information Engineering, University of Electronic and Science Technology of China (UESTC), Chengdu. She is now an associate professor in UESTC. Her research interests include signal processing in wireless communications. E-mail: yanghf@uestc.edu.cn|YAN Suxin was born in 1994. She received her master degree in 2016 from the Department of Communication and Information Engineering, University of Electronic and Science Technology of China (UESTC), Chengdu. Her research interests include channel coding in wireless communications. E-mail: sx_yan@126.com|ZHANG Hao was born in 1993. He received his bachelor degree in 2017 from University of Electronic Science and Technology of China (UESTC), Chengdu. He is now studying as a postgraduate at UESTC. His research interests include specific emitter identification. E-mail: zhanghao_sice@163.com|REN Yan was born in 1995. She received her bachelor degree in 2017 from the Department of Communication Engineering, Wuhan University of Technology (WHUT), Wuhan. She is currently working toward her master degree in the Department of Information and Communication Engineering at University of Electronic and Science Technology of China (UESTC). Her research interests include wireless communication and deep learning. E-mail: renyanstone@163.com|HU Xiangdong was born in 1990. He is now studying toward his M.S. degree in the Department of Information and Communication Engineering, University of Electronic and Science Technology of China (UESTC). His research interests include wireless communication and machine learning. E-mail: 379482415@qq.com|LIN Shuisheng was born in 1967. He received his Ph.D. degree in 1998 from University of Electronic and Science Technology of China (UESTC), Chengdu. He is now a professor in UESTC. His research interests include wireless communications and integrated circuits. E-mail: sslin@uestc.edu.cn
  • Supported by:
    the National Key R & D Program of China(2018YFB2101300);the National Science Foundation of China(61973056);This work was supported by the National Key R & D Program of China (2018YFB2101300) and the National Science Foundation of China (61973056)

Abstract:

Polar codes represent one of the major breakthroughs in 5G standard, and have been proven to be able to achieve the symmetric capacity of binary-input discrete memoryless channels using the successive cancellation list (SCL) decoding algorithm. However, the SCL algorithm suffers from a large amount of memory overhead. This paper proposes an adaptive simplified decoding algorithm for multiple cyclic redundancy check (CRC) polar codes. Simulation results show that the proposed method can reduce the decoding complexity and memory space. It can also acquire the performance gain in the low signal to noise ratio region.

Key words: polar code, successive cancellation list (SCL), cyclic redundancy check (CRC), adaptive decoding