北京邮电大学网络与交换技术全国重点实验室,北京 100876
[ "赵崇尧(2001- ),男,北京邮电大学网络与交换技术全国重点实验室硕士生,主要研究方向为星地融合无线网络。" ]
[ "孙耀华(1992- ),男,博士,北京邮电大学网络与交换技术全国重点实验室副教授,主要研究方向为低轨卫星通信和无线接入网络智能化。" ]
[ "冯昕澳(1999- ),男,北京邮电大学网络与交换技术全国重点实验室博士生,主要研究方向为低轨卫星通信和巨型低轨星座组网。" ]
[ "彭木根(1978- ),男,博士,北京邮电大学网络与交换技术全国重点实验室教授,主要研究方向为空间信息通信、通感算一体化、雾无线接入网络等。" ]
收稿:2025-02-27,
修回:2025-04-27,
纸质出版:2025-05-20
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赵崇尧,孙耀华,冯昕澳等.基于OMNeT++的低轨卫星时间确定性网络仿真平台设计[J].电信科学,2025,41(05):43-59.
ZHAO Chongyao,SUN Yaohua,FENG Xin’ao,et al.Design of time-deterministic network simulation platform for low-orbit satellites based on OMNeT++[J].Telecommunications Science,2025,41(05):43-59.
赵崇尧,孙耀华,冯昕澳等.基于OMNeT++的低轨卫星时间确定性网络仿真平台设计[J].电信科学,2025,41(05):43-59. DOI: 10.11959/j.issn.1000-0801.2025140.
ZHAO Chongyao,SUN Yaohua,FENG Xin’ao,et al.Design of time-deterministic network simulation platform for low-orbit satellites based on OMNeT++[J].Telecommunications Science,2025,41(05):43-59. DOI: 10.11959/j.issn.1000-0801.2025140.
为了满足实时和高可靠数据传输需求,地面网络以太网标准引入时间敏感网络(time-sensitive networking,TSN),通过流量整形、流量调度等手段有效降低时延抖动。然而,地面网络的部署受限于环境因素,难以覆盖偏远地区和空中服务对象,无法满足对时延抖动的严格要求。考虑低轨卫星网络具有广域立体覆盖优势,开展了TSN技术在低轨卫星网络中的适用性评估。利用OMNeT++构建了低轨通信网络时间确定性技术仿真平台,详细介绍了仿真平台各功能模块的设计原理与工作流程。同时,针对关键机制进行了深入分析。通过仿真评估,验证TSN技术在保障低轨卫星网络时间敏感业务端到端时延、时延抖动、数据包到达率的性能优势。
In order to meet the demand for real-time and highly reliable data transmission
the Ethernet standard for terrestrial networks introduces time-sensitive networking (TSN)
which effectively reduces delay jitter by the means of traffic shaping and traffic scheduling. However
the deployment of terrestrial networks is limited by environmental factors
and it is difficult to cover remote areas and airborne service objects
which can’t meet the strict requirements for delay jitter. Considering that low-orbit satellite networks have the advantage of wide-area three-dimensional coverage
the applicability assessment of TSN technology in low-orbit satellite networks was carried out. OMNeT++ was used to construct a simulation platform for time-deterministic technology in low-orbit communication networks
and the design principles and workflow of each functional module of the simulation platform were introduced in detail. Meanwhile
the key mechanisms were analyzed in depth. Through simulation evaluation
it verifies the performance advantages of TSN technology in guaranteeing the end-to-end delay
delay jitter
and packet arrival rate of time-sensitive services in low-orbit satellite networks.
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