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CRC-aided logarithmic stack decoding of polar codes for ultra reliable low latency communication in 3GPP new radio

CRC-aided logarithmic stack decoding of polar codes for ultra reliable low latency communication in 3GPP new radio
CRC-aided logarithmic stack decoding of polar codes for ultra reliable low latency communication in 3GPP new radio
This paper provides a detailed tutorial on the Cyclic Redundancy Check (CRC)-aided Logarithmic Successive Cancellation Stack (Log-SCS) algorithm. We apply these algorithms for the ultra-reliable decoding of polar codes, which has relevance for the control channels of the Ultra-Reliable Low Latency Communication (URLLC) version of the Third Generation Partnership Project (3GPP) New Radio (NR). During the exploitation of the CRC codes to improve the error correction performance, we propose a novel technique which limits the number of CRC checks performed, in order to maintain a consistent error detection performance. Additionally, we propose a pair of techniques for further improving the performance of the Log-SCS polar decoder. We demonstrate that the proposed S = 128 Improved Log-SCS decoder achieves a similar error correction capability as a Logarithmic Successive Cancellation List (Log-SCL) decoder having a list size of L = 128 across the full range of block lengths supported by the 3GPP NR Physical Uplink Control Channel (PUCCH). This is achieved without increasing its memory requirement, while dramatically reducing its complexity, which becomes up to seven times lower than
that of a L = 8 Log-SCL decoder.
2169-3536
Xiang, Luping
ee0a15fb-5774-4004-b236-e301d323d786
Kaykac Egilmez, Zeynep Burcin
071b0c1a-a884-45fc-8dc4-e706c9972a69
Maunder, Robert
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Xiang, Luping
ee0a15fb-5774-4004-b236-e301d323d786
Kaykac Egilmez, Zeynep Burcin
071b0c1a-a884-45fc-8dc4-e706c9972a69
Maunder, Robert
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Xiang, Luping, Kaykac Egilmez, Zeynep Burcin, Maunder, Robert and Hanzo, Lajos (2019) CRC-aided logarithmic stack decoding of polar codes for ultra reliable low latency communication in 3GPP new radio. IEEE Access. (doi:10.1109/ACCESS.2019.2901596).

Record type: Article

Abstract

This paper provides a detailed tutorial on the Cyclic Redundancy Check (CRC)-aided Logarithmic Successive Cancellation Stack (Log-SCS) algorithm. We apply these algorithms for the ultra-reliable decoding of polar codes, which has relevance for the control channels of the Ultra-Reliable Low Latency Communication (URLLC) version of the Third Generation Partnership Project (3GPP) New Radio (NR). During the exploitation of the CRC codes to improve the error correction performance, we propose a novel technique which limits the number of CRC checks performed, in order to maintain a consistent error detection performance. Additionally, we propose a pair of techniques for further improving the performance of the Log-SCS polar decoder. We demonstrate that the proposed S = 128 Improved Log-SCS decoder achieves a similar error correction capability as a Logarithmic Successive Cancellation List (Log-SCL) decoder having a list size of L = 128 across the full range of block lengths supported by the 3GPP NR Physical Uplink Control Channel (PUCCH). This is achieved without increasing its memory requirement, while dramatically reducing its complexity, which becomes up to seven times lower than
that of a L = 8 Log-SCL decoder.

Text
log-scs-2 - Accepted Manuscript
Available under License Creative Commons Attribution.
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More information

Accepted/In Press date: 22 February 2019
e-pub ahead of print date: 25 February 2019

Identifiers

Local EPrints ID: 428529
URI: https://eprints.soton.ac.uk/id/eprint/428529
ISSN: 2169-3536
PURE UUID: 648276d5-d97e-4afc-a06b-0218dfe57dd8
ORCID for Luping Xiang: ORCID iD orcid.org/0000-0003-1465-6708
ORCID for Robert Maunder: ORCID iD orcid.org/0000-0002-7944-2615
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 01 Mar 2019 17:30
Last modified: 03 Dec 2019 02:06

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Contributors

Author: Luping Xiang ORCID iD
Author: Zeynep Burcin Kaykac Egilmez
Author: Robert Maunder ORCID iD
Author: Lajos Hanzo ORCID iD

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