Adaptive Time-Slot Optical Switching for Latency-Sensitive IoT Fronthaul in 6G Networks
文献类型：期刊论文
| 作者 | Yang, Changsheng2; Xue, Xuwei2; Pan, Bitao2; Guo, Bingli2; Qiu, Zihan2; Li, Wenzhe1; Shen, Shikui3; Hu, Yakun3; Wu, Xianchen2; Yuan, Guojun1 |
| 刊名 | JOURNAL OF LIGHTWAVE TECHNOLOGY
 |
| 出版日期 | 2025-12-15 |
| 卷号 | 43期号:24页码:10930-10938 |
| 关键词 | Optical buffering Optical switches Optical reflection Real-time systems Adaptive optics Optical transmitters Resource management Job shop scheduling Dynamic scheduling 6G mobile communication 6G network architecture adaptive time-slot scheduling edge computing Internet of Things optical fronthaul optical switching network |
| ISSN号 | 0733-8724 |
| DOI | 10.1109/JLT.2025.3620367 |
| 英文摘要 | The explosive growth of latency-sensitive IoT applications and the emergence of 6G networks are placing unprecedented demands on cloud radio access networks (C-RAN), with the fronthaul segment becoming a critical performance bottleneck. Conventional fixed time-slot scheduling in optical fronthaul networks struggles to accommodate the highly dynamic and bursty traffic patterns inherent in emerging IoT and 6G applications. The static allocation of time-slots prevents networks from responding flexibly to real-time traffic variations, causing some slots to remain underutilized during periods of low traffic, while others become congested under high-load conditions. To address the limitations of conventional fixed time-slot scheduling in optical fronthaul systems, this paper proposes a buffer-aware, adaptive time-slot scheduling mechanism tailored for optical switching-based C-RAN architectures. The proposed mechanism operates on a matrix of virtual queues and employs a max-occupancy arbitration strategy to prioritize heavily loaded buffers, ensuring contention-free transmissions across transmitter-receiver (Tx-Rx) port pairs. Furthermore, the time-slot duration is dynamically adjusted based on real-time buffer occupancy ratio, providing fine-grained control over bandwidth allocation while protecting unscheduled queues from overflow. Experimental results demonstrate that the adaptive time-slot scheduling approach achieves a 2.6x reduction in average latency and maintains packet loss rates below 2.37E-10 under full-load conditions-significantly outperforming fixed timeslot-slot mechanism that exhibit up to 67.32% packet loss. |
| 资助项目 | National Key R&D Program of China[2024YFB2908303] ; BUPT Innovation and Entrepreneurship Support Program[2025-YC-A022] ; 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 |
| WOS研究方向 | Engineering ; Optics ; Telecommunications |
| 语种 | 英语 |
| WOS记录号 | WOS:001632332400006 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/42959]  |
| 专题 | 中国科学院计算技术研究所 |
| 通讯作者 | Xue, Xuwei |
| 作者单位 | 1.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China 2.Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, 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,Pan, Bitao,et al. Adaptive Time-Slot Optical Switching for Latency-Sensitive IoT Fronthaul in 6G Networks[J]. JOURNAL OF LIGHTWAVE TECHNOLOGY,2025,43(24):10930-10938. |
| APA | Yang, Changsheng.,Xue, Xuwei.,Pan, Bitao.,Guo, Bingli.,Qiu, Zihan.,...&Huang, Shanguo.(2025).Adaptive Time-Slot Optical Switching for Latency-Sensitive IoT Fronthaul in 6G Networks.JOURNAL OF LIGHTWAVE TECHNOLOGY,43(24),10930-10938. |
| MLA | Yang, Changsheng,et al."Adaptive Time-Slot Optical Switching for Latency-Sensitive IoT Fronthaul in 6G Networks".JOURNAL OF LIGHTWAVE TECHNOLOGY 43.24(2025):10930-10938. |
入库方式： OAI收割
来源：计算技术研究所
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