ReCQF: Enhancing CQF Redundancy with Delay Alignment Scheduling in TSN

Yan Liu; Zhuyun Qi; Xingbo Feng; Shuangping Zhan; Yao Xin; Jiashuo Lin; Chenxi Ling; Ruide Cao; Weichao Li; Yi Wang

doi:10.1109/IWQoS65803.2025.11143496

ReCQF: Enhancing CQF Redundancy with Delay Alignment Scheduling in TSN

Yan Liu, Zhuyun Qi^*, Xingbo Feng, Shuangping Zhan, Yao Xin, Jiashuo Lin, Chenxi Ling, Ruide Cao, Weichao Li^*, Yi Wang^*

^*Corresponding author for this work

Department of Computer Science

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

Integrating Frame Replication and Elimination for Reliability (FRER) with Cyclic Queuing and Forwarding (CQF) in Time-Sensitive Networks (TSN) encounters redundancy failures and resource reservation inefficiencies due to length disparities across redundant paths. To address these challenges, we propose ReCQF, a Reliability-Enhanced CQF scheduling framework built on Multi-Instance CQF. ReCQF adaptively assigns redundant flows to multiple CQF queue pairs with specific cycles, effectively aligning transmission delays across redundant paths to ensure low delay and inter-path delay differences while significantly reducing resource reservations. © 2025 IEEE.

Original language	English
Title of host publication	2025 IEEE/ACM 33rd International Symposium on Quality of Service (IWQoS)
Publisher	IEEE
Number of pages	2
ISBN (Electronic)	979-8-3315-4940-4
DOIs	https://doi.org/10.1109/IWQoS65803.2025.11143496
Publication status	Published - 2025
Event	33rd IEEE/ACM International Symposium on Quality of Service (IWQoS 2025) - Gold Coast, Australia Duration: 2 Jul 2025 → 4 Jul 2025 https://iwqos2025.ieee-iwqos.org/

Publication series

Name	IEEE International Workshop on Quality of Service, IWQoS
ISSN (Print)	1548-615X

Conference

Conference	33rd IEEE/ACM International Symposium on Quality of Service (IWQoS 2025)
Abbreviated title	IEEE/ACM IWQoS 2025
Place	Australia
City	Gold Coast
Period	2/07/25 → 4/07/25
Internet address	https://iwqos2025.ieee-iwqos.org/

Bibliographical note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Funding

This work is supported by the Guangdong High-Level Talents Special Support Program (2021TX05X205), the Guangdong Basic and Applied Basic Research Foundation (2024A0101010001), the Major Key Project of PCL (PCL2023AS1-3, PCL2023A03), and the PCL-CMCC Foundation for Science and Innovation (2024ZY1A0010).

Research Keywords

Cyclic Queuing
Forwarding
Reliability
Time-sensitive Networking
Traffic Scheduling

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10.1109/IWQoS65803.2025.11143496

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Cite this

@inproceedings{f97c7d49c2924aed87c9f86c13d07382,

title = "ReCQF: Enhancing CQF Redundancy with Delay Alignment Scheduling in TSN",

abstract = "Integrating Frame Replication and Elimination for Reliability (FRER) with Cyclic Queuing and Forwarding (CQF) in Time-Sensitive Networks (TSN) encounters redundancy failures and resource reservation inefficiencies due to length disparities across redundant paths. To address these challenges, we propose ReCQF, a Reliability-Enhanced CQF scheduling framework built on Multi-Instance CQF. ReCQF adaptively assigns redundant flows to multiple CQF queue pairs with specific cycles, effectively aligning transmission delays across redundant paths to ensure low delay and inter-path delay differences while significantly reducing resource reservations. {\textcopyright} 2025 IEEE.",

keywords = "Cyclic Queuing, Forwarding, Reliability, Time-sensitive Networking, Traffic Scheduling",

author = "Yan Liu and Zhuyun Qi and Xingbo Feng and Shuangping Zhan and Yao Xin and Jiashuo Lin and Chenxi Ling and Ruide Cao and Weichao Li and Yi Wang",

note = "Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).; 33rd IEEE/ACM International Symposium on Quality of Service (IWQoS 2025), IEEE/ACM IWQoS 2025 ; Conference date: 02-07-2025 Through 04-07-2025",

year = "2025",

doi = "10.1109/IWQoS65803.2025.11143496",

language = "English",

series = "IEEE International Workshop on Quality of Service, IWQoS",

publisher = "IEEE",

booktitle = "2025 IEEE/ACM 33rd International Symposium on Quality of Service (IWQoS)",

address = "United States",

url = "https://iwqos2025.ieee-iwqos.org/",

}

Liu, Y, Qi, Z, Feng, X, Zhan, S, Xin, Y, Lin, J, Ling, C, Cao, R, Li, W & Wang, Y 2025, ReCQF: Enhancing CQF Redundancy with Delay Alignment Scheduling in TSN. in 2025 IEEE/ACM 33rd International Symposium on Quality of Service (IWQoS). IEEE International Workshop on Quality of Service, IWQoS, IEEE, 33rd IEEE/ACM International Symposium on Quality of Service (IWQoS 2025), Gold Coast, Australia, 2/07/25. https://doi.org/10.1109/IWQoS65803.2025.11143496

ReCQF: Enhancing CQF Redundancy with Delay Alignment Scheduling in TSN. / Liu, Yan; Qi, Zhuyun; Feng, Xingbo et al.
2025 IEEE/ACM 33rd International Symposium on Quality of Service (IWQoS). IEEE, 2025. (IEEE International Workshop on Quality of Service, IWQoS).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - ReCQF

T2 - 33rd IEEE/ACM International Symposium on Quality of Service (IWQoS 2025)

AU - Liu, Yan

AU - Qi, Zhuyun

AU - Feng, Xingbo

AU - Zhan, Shuangping

AU - Xin, Yao

AU - Lin, Jiashuo

AU - Ling, Chenxi

AU - Cao, Ruide

AU - Li, Weichao

AU - Wang, Yi

N1 - Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

PY - 2025

Y1 - 2025

N2 - Integrating Frame Replication and Elimination for Reliability (FRER) with Cyclic Queuing and Forwarding (CQF) in Time-Sensitive Networks (TSN) encounters redundancy failures and resource reservation inefficiencies due to length disparities across redundant paths. To address these challenges, we propose ReCQF, a Reliability-Enhanced CQF scheduling framework built on Multi-Instance CQF. ReCQF adaptively assigns redundant flows to multiple CQF queue pairs with specific cycles, effectively aligning transmission delays across redundant paths to ensure low delay and inter-path delay differences while significantly reducing resource reservations. © 2025 IEEE.

AB - Integrating Frame Replication and Elimination for Reliability (FRER) with Cyclic Queuing and Forwarding (CQF) in Time-Sensitive Networks (TSN) encounters redundancy failures and resource reservation inefficiencies due to length disparities across redundant paths. To address these challenges, we propose ReCQF, a Reliability-Enhanced CQF scheduling framework built on Multi-Instance CQF. ReCQF adaptively assigns redundant flows to multiple CQF queue pairs with specific cycles, effectively aligning transmission delays across redundant paths to ensure low delay and inter-path delay differences while significantly reducing resource reservations. © 2025 IEEE.

KW - Cyclic Queuing

KW - Forwarding

KW - Reliability

KW - Time-sensitive Networking

KW - Traffic Scheduling

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U2 - 10.1109/IWQoS65803.2025.11143496

DO - 10.1109/IWQoS65803.2025.11143496

M3 - RGC 32 - Refereed conference paper (with host publication)

T3 - IEEE International Workshop on Quality of Service, IWQoS

BT - 2025 IEEE/ACM 33rd International Symposium on Quality of Service (IWQoS)

PB - IEEE

Y2 - 2 July 2025 through 4 July 2025

ER -

ReCQF: Enhancing CQF Redundancy with Delay Alignment Scheduling in TSN

Abstract

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Bibliographical note

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Research Keywords

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