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Termination for Belief Propagation Decoding of Polar Codes in Fading Channels

  • Chen Zhang
  • Yangzhi Luo
  • Liping LiEmail author
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 301)

Abstract

In additive white Gaussian channel (AWGN), the performance of polar codes under the successive cancellation (SC) decoding is not as good as that of the belief propagation (BP) decoding. However, in a fading channel, the performance of BP decoding is found in our study to be worse than the SC decoding. In this work, we propose a termination criterion for the BP decoding of polar codes to improve the performance and the average number of iterations at the same time. Simulation results show that BP decoding can still achieve a better performance than the SC decoding in fading channels with the proposed termination.

Keywords

Polar code Belief propagation Successive cancellation decoding Fading channels 

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019

Authors and Affiliations

  1. 1.Key Laboratory of Intelligent Computing and Signal Processing of the Ministry of Education of ChinaAnhui UniversityHefeiChina

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