Connected-coding retransmission scheme for low-density parity-check codes in 5G

Jingwen Zhang, Jingxuan Huang, Ce Sun, Dai Jia, Xinyi Wang, Zesong Fei

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Aiming at reducing unnecessary packet losses of transport block (TB) level hybrid automatic repeat request (HARQ), we propose a connected-coding retransmission (CCR) scheme for low-density parity-check (LDPC) codes in 5G data channels. Once the transmission of a TB, which is divided into one or several code blocks (CBs), was failed, we introduce failed CBs information into the parity bits of the new CBs by connected encoding. Then error correction for the failed CBs is achieved again by connected decoding to avoid packet losses. The simulation results in fading channel demonstrate that the proposed scheme efficiently improves both CB error rate performances and system throughput performances.

Original languageEnglish
Title of host publication2019 28th Wireless and Optical Communications Conference, WOCC 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728106601
DOIs
Publication statusPublished - May 2019
Event28th Wireless and Optical Communications Conference, WOCC 2019 - Beijing, China
Duration: 9 May 201910 May 2019

Publication series

Name2019 28th Wireless and Optical Communications Conference, WOCC 2019 - Proceedings

Conference

Conference28th Wireless and Optical Communications Conference, WOCC 2019
Country/TerritoryChina
CityBeijing
Period9/05/1910/05/19

Keywords

  • 5G
  • Connected-coding retransmission
  • HARQ
  • LDPC

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Zhang, J., Huang, J., Sun, C., Jia, D., Wang, X., & Fei, Z. (2019). Connected-coding retransmission scheme for low-density parity-check codes in 5G. In 2019 28th Wireless and Optical Communications Conference, WOCC 2019 - Proceedings Article 8770690 (2019 28th Wireless and Optical Communications Conference, WOCC 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WOCC.2019.8770690