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Adaptive Flow Control Mechanism for Optical Switching Data Center Networks

文献类型：期刊论文

作者Yang, Changsheng1; Xue, Xuwei1; Guo, Bingli1; Qiu, Zihan1; Li, Wenzhe2; Shen, Shikui3; Guo, Yuanzhi1; Wu, Xianchen1; Yu, Guo1; Yuan, Guojun2
刊名JOURNAL OF LIGHTWAVE TECHNOLOGY
出版日期2025-09-01
卷号43期号:17页码:8245-8253
关键词Optical switches Optical packet switching Synchronization Optical buffering Adaptive optics Resource management Adaptive systems Optical fibers Dynamic scheduling Delays Adaptive flow control data center network optical switching network packet contention resolution
ISSN号0733-8724
DOI10.1109/JLT.2025.3586903
英文摘要Optical switching is anticipated to be an alternative to electrical switching in Data Center Networks (DCNs), as it can provide higher bandwidth at a relatively lower cost and energy consumption. However, deploying optical switching systems remains a significant challenge due to the lack of an adaptive flow control (FC) mechanism to provide elastic bandwidth to cope with traffic bursty and complexity. Implementing adaptive FC requires addressing two important technical challenges, including high-precision time synchronization among network nodes and low-latency scheduling for dynamic time-slot allocation. We have designed a high-precision time synchronization mechanism that enables nanosecond rapid optical switching control. Additionally, we proposed a low-latency scheduling strategy to facilitate the dynamic time-slot allocation while effectively eliminating packet contention. Experimental results demonstrate that the proposed adaptive FC mechanism has achieved zero packet loss and zero packet error rates across various bursty traffic patterns, significantly outperforming the fixed time-slot method with a packet loss rate of 61.2%. Additionally, the system has achieved a very low synchronization offset of 1.65 ns, an extremely low timer jitter (sigma = 11.06 ps), and no observed drift during long-term operations. Furthermore, the proposed scheduling mechanism in our system completely avoids optical packet contention and reduces control time to 30.72 ns, representing a tenfold reduction compared to the typical 'Request-Grant' (350.72 ns) approach.
资助项目National Key R&D Program of China[2024YFB2908303] ; National Natural Science Foundation of China[62220106002] ; National Natural Science Foundation of China[62125103] ; National Natural Science Foundation of China[62171059] ; National Natural Science Foundation of China[62401082] ; BUPT-China Unicom Joint Innovation Center ; BUPT innovation and entrepreneurship support program[2025-YC-A022]
WOS研究方向Engineering ; Optics ; Telecommunications
语种英语
WOS记录号WOS:001553665800008
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
源URL[http://119.78.100.204/handle/2XEOYT63/41788]  
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Xue, Xuwei
作者单位1.Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
2.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China
3.China Unicom Res Inst, Beijing 100176, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Changsheng,Xue, Xuwei,Guo, Bingli,et al. Adaptive Flow Control Mechanism for Optical Switching Data Center Networks[J]. JOURNAL OF LIGHTWAVE TECHNOLOGY,2025,43(17):8245-8253.
APA Yang, Changsheng.,Xue, Xuwei.,Guo, Bingli.,Qiu, Zihan.,Li, Wenzhe.,...&Huang, Shanguo.(2025).Adaptive Flow Control Mechanism for Optical Switching Data Center Networks.JOURNAL OF LIGHTWAVE TECHNOLOGY,43(17),8245-8253.
MLA Yang, Changsheng,et al."Adaptive Flow Control Mechanism for Optical Switching Data Center Networks".JOURNAL OF LIGHTWAVE TECHNOLOGY 43.17(2025):8245-8253.

入库方式： OAI收割

来源：计算技术研究所

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