Post-Processing for CRC-Aided Successive Cancellation List Decoding of Polar Codes

Chung-Hsuan Wang, Yi-Han Pan, Yu-Heng Lin, Yeong-Luh Ueng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


In this letter, three post-processing schemes for cyclic redundancy check (CRC-)aided successive cancellation list (CA-SCL) decoding are presented for polar codes. The re-decoding based on our post-processing schemes can effectively alleviate both the channel and decision errors encountered via CA-SCL decoding. Simulation results show that our schemes perform better than conventional re-decoding schemes and can be incorporated into a polar decoder that has a small list size to achieve a performance that is expected for a large list size.

Original languageEnglish
Pages (from-to)1395-1399
Number of pages5
JournalIEEE Communications Letters
Issue number7
StatePublished - Jul 2020


  • Decoding
  • Measurement
  • Electronic mail
  • Cyclic redundancy check
  • Simulation
  • Indexes
  • Reliability
  • Polar codes
  • successive cancellation list decoding
  • bit flip decoding
  • post-processing


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