摘要
效能评估可为低轨卫星互联网的新技术验证提供有力支撑。针对低轨卫星互联网组网灵活、大时空尺度的特性,提出一种面向低轨卫星互联网的效能评估架构。基于此架构,针对低轨卫星互联网效能要素多样的特点,在多维度综合考量的前提下设计了效能评估指标体系;针对星地链路频繁切换的问题,提出星地链路切换算法,为后续采集工作奠定基础;针对指标多维度和源数据规模大的问题,提出指标源数据多模式并行采集方法,提升了数据采集的效率;针对以标准化流程评估效能的需求,提出效能评估策略。实验表明:所提方法在数据采集性能上相较于传统方法提升了47.16%,同时能够系统且全面地评估低轨卫星互联网的效能。
Performance evaluation can provide strong support for new technology verification of low earth orbit(LEO)satellite internet.Aiming at the characteristics of flexible networking and large spacetime scale of satellite internet,a performance evaluation architecture of satellite internet is designed.Aiming at the characteristics of various performance elements,a performance evaluation index system is designed under the premise of multi-dimensional comprehensive consideration.Aiming at the problem of frequent switching of satellite-ground links caused by high-speed movement,an algorithm for satelliteground link switching is proposed,which provides support for subsequent collection work.Aiming at the multi-dimensional problem of indicators,a multi-mode collection technology for indicator source data is proposed,which improves the efficiency of data.Aiming at the requirement of how to evaluate performance through a standardized process,a satellite Internet performance evaluation strategy is designed.Experiments show that compared with traditional methods,data acquisition performance improved by 47.16%.It has the ability to realize the systematic and comprehensive performance evaluation of LEO satellite internet.
作者
王晓锋
张怡
张国秀
Wang Xiaofeng;Zhang Yi;Zhang Guoxiu(College of Artificial Intelligence and Computer Science,Jiangnan University,Wuxi 214122,China;Peng Cheng Laboratory,Shenzhen 518055,China)
出处
《系统仿真学报》
北大核心
2025年第1期119-133,共15页
Journal of System Simulation
基金
国家自然科学基金(62172191,61972182)
鹏城实验室重大任务项目(PCL2022A03)。
关键词
低轨卫星互联网
网络仿真
切换仿真
效能评估
多模式采集
low earth orbit(LEO)satellite internet
network emulation
switching emulation
performance evaluation
multi-mode acquisition
