通过WLAN进行TSN交互的确定性传输
1Department of Railroad Electrical and Information Engineering, Korea National University of Transportation, Uiwang 16106, Republic of Korea.
Sensors (Basel, Switzerland)
|September 27, 2025
概括
本研究引入了一个新的方案,结合了限制目标唤醒时间 (r-TWT),静止时间 (QTP) 和随机排队 (RE),以确保在无线局域网 (WLAN) 上为时间敏感网络 (TSN) 提供确定性服务. 拟议的方法成功地保证了定期流量的决定性性能,而不会显著影响其他网络流量.
科学领域:
- 计算机科学 计算机科学
- 网络化 网络化 网络化
- 无线通信无线通信
背景情况:
- 时间敏感网络 (TSN) 需要确定性服务,这在基于争议的无线局域网 (WLAN) 中具有挑战性.
- 根据IEEE 802.11be标准的限制目标唤醒时间 (r-TWT) 提供了优先级,但其在混合遗留环境中的决定性保证尚未证明.
研究的目的:
- 为 TSN 工作负载在 WLAN 中实现确定性服务提出和分析一种新的,与标准一致的方案.
- 评估该计划在保护定期交通 (ST) 的有效性,同时尽量减少对非定期交通 (NST) 的影响.
主要方法:
- 开发了一个综合方案,整合了r-TWT,安静时间周期 (QTP) 和可选的随机排队 (RE) 策略.
- 更新理论和增强分布式通道访问 (EDCA) 马尔科夫链模型被用来分析对争议期 (CP) 和服务期 (SP) 的影响.
主要成果:
- 拟议的方案坚定地保证了ST的决定性,保持了在各种站点计数中零停机和有限延迟的最大吞吐量.
- 减少非定期运输 (NST) 吞吐量降低,特别是在系统的峰值吞吐量范围内 (8-12个站).
结论:
- 拟议的r-TWT,QTP和RE组合有效地确保了WLAN中TSN的确定性服务.
- 该方案为混合部署提供了可行的解决方案,平衡了定期和非定期交通的需求.
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