A semi-folded decoding architecture for flexible codeword length configuration of polar codes

Shan Cao; Limin Jiang; Ting Lin; Shunqing Zhang; Shugong Xu

doi:10.1109/ISCAS51556.2021.9401424

A semi-folded decoding architecture for flexible codeword length configuration of polar codes

Shan Cao, Limin Jiang, Ting Lin, Shunqing Zhang, Shugong Xu

Shanghai University

Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review

1 Citation (Scopus)

Abstract

Diverse application scenarios in 5G and beyond wireless communication systems have introduced various requirements in code lengths and rates of channel codes. For the decoding of polar codes, especially the belief-propagation (BP) decoding, flexible configuration of codeword length is still not involved in current decoders. In this paper, a semi-folded decoding structure is proposed which can be reconfigured to support multiple codeword lengths. Up to 16 codes can be decoded in parallel and the utilization of processing units is no less than 87.5% for various codeword lengths. The peak throughput of 19.29 Gbps can be achieved by the proposed decoder in SMIC 55 nm CMOS technology.

Original language	English
Title of host publication	2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728192017
DOIs	https://doi.org/10.1109/ISCAS51556.2021.9401424
Publication status	Published - 2021
Externally published	Yes
Event	53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Daegu, Korea, Republic of Duration: 22 May 2021 → 28 May 2021

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2021-May
ISSN (Print)	0271-4310

Conference

Conference	53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021
Country/Territory	Korea, Republic of
City	Daegu
Period	22/05/21 → 28/05/21

Keywords

Belief Propagation (BP)
Hardware implementation
Polar codes

Access to Document

10.1109/ISCAS51556.2021.9401424

Cite this

Cao, S., Jiang, L., Lin, T., Zhang, S., & Xu, S. (2021). A semi-folded decoding architecture for flexible codeword length configuration of polar codes. In 2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings Article 9401424 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2021-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS51556.2021.9401424

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title = "A semi-folded decoding architecture for flexible codeword length configuration of polar codes",

abstract = "Diverse application scenarios in 5G and beyond wireless communication systems have introduced various requirements in code lengths and rates of channel codes. For the decoding of polar codes, especially the belief-propagation (BP) decoding, flexible configuration of codeword length is still not involved in current decoders. In this paper, a semi-folded decoding structure is proposed which can be reconfigured to support multiple codeword lengths. Up to 16 codes can be decoded in parallel and the utilization of processing units is no less than 87.5% for various codeword lengths. The peak throughput of 19.29 Gbps can be achieved by the proposed decoder in SMIC 55 nm CMOS technology.",

keywords = "Belief Propagation (BP), Hardware implementation, Polar codes",

author = "Shan Cao and Limin Jiang and Ting Lin and Shunqing Zhang and Shugong Xu",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE; 53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021 ; Conference date: 22-05-2021 Through 28-05-2021",

year = "2021",

doi = "10.1109/ISCAS51556.2021.9401424",

language = "English",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings",

}

Cao, S, Jiang, L, Lin, T, Zhang, S & Xu, S 2021, A semi-folded decoding architecture for flexible codeword length configuration of polar codes. in 2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings., 9401424, Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2021-May, Institute of Electrical and Electronics Engineers Inc., 53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021, Daegu, Korea, Republic of, 22/05/21. https://doi.org/10.1109/ISCAS51556.2021.9401424

A semi-folded decoding architecture for flexible codeword length configuration of polar codes. / Cao, Shan; Jiang, Limin; Lin, Ting et al.
2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. 9401424 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2021-May).

Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review

TY - GEN

T1 - A semi-folded decoding architecture for flexible codeword length configuration of polar codes

AU - Cao, Shan

AU - Jiang, Limin

AU - Lin, Ting

AU - Zhang, Shunqing

AU - Xu, Shugong

PY - 2021

Y1 - 2021

N2 - Diverse application scenarios in 5G and beyond wireless communication systems have introduced various requirements in code lengths and rates of channel codes. For the decoding of polar codes, especially the belief-propagation (BP) decoding, flexible configuration of codeword length is still not involved in current decoders. In this paper, a semi-folded decoding structure is proposed which can be reconfigured to support multiple codeword lengths. Up to 16 codes can be decoded in parallel and the utilization of processing units is no less than 87.5% for various codeword lengths. The peak throughput of 19.29 Gbps can be achieved by the proposed decoder in SMIC 55 nm CMOS technology.

AB - Diverse application scenarios in 5G and beyond wireless communication systems have introduced various requirements in code lengths and rates of channel codes. For the decoding of polar codes, especially the belief-propagation (BP) decoding, flexible configuration of codeword length is still not involved in current decoders. In this paper, a semi-folded decoding structure is proposed which can be reconfigured to support multiple codeword lengths. Up to 16 codes can be decoded in parallel and the utilization of processing units is no less than 87.5% for various codeword lengths. The peak throughput of 19.29 Gbps can be achieved by the proposed decoder in SMIC 55 nm CMOS technology.

KW - Belief Propagation (BP)

KW - Hardware implementation

KW - Polar codes

UR - http://www.scopus.com/inward/record.url?scp=85109010200&partnerID=8YFLogxK

U2 - 10.1109/ISCAS51556.2021.9401424

DO - 10.1109/ISCAS51556.2021.9401424

M3 - Conference Proceeding

AN - SCOPUS:85109010200

T3 - Proceedings - IEEE International Symposium on Circuits and Systems

BT - 2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021

Y2 - 22 May 2021 through 28 May 2021

ER -

Cao S, Jiang L, Lin T, Zhang S, Xu S. A semi-folded decoding architecture for flexible codeword length configuration of polar codes. In 2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2021. 9401424. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS51556.2021.9401424

A semi-folded decoding architecture for flexible codeword length configuration of polar codes

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