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面向卫星编队飞行的有线无线时隙融合调度方案研究

邢媛 徐川 纪伟星 赵国锋 程克非

邢媛, 徐川, 纪伟星, 赵国锋, 程克非. 面向卫星编队飞行的有线无线时隙融合调度方案研究[J]. 电子与信息学报, 2023, 45(12): 4271-4279. doi: 10.11999/JEIT220916
引用本文: 邢媛, 徐川, 纪伟星, 赵国锋, 程克非. 面向卫星编队飞行的有线无线时隙融合调度方案研究[J]. 电子与信息学报, 2023, 45(12): 4271-4279. doi: 10.11999/JEIT220916
XING Yuan, XU Chuan, JI Weixing, ZHAO Guofeng, CHENG Kefei. Research on Wired and Wireless Time Slots Converged Scheduling Scheme for Satellite Formation Flying[J]. Journal of Electronics & Information Technology, 2023, 45(12): 4271-4279. doi: 10.11999/JEIT220916
Citation: XING Yuan, XU Chuan, JI Weixing, ZHAO Guofeng, CHENG Kefei. Research on Wired and Wireless Time Slots Converged Scheduling Scheme for Satellite Formation Flying[J]. Journal of Electronics & Information Technology, 2023, 45(12): 4271-4279. doi: 10.11999/JEIT220916

面向卫星编队飞行的有线无线时隙融合调度方案研究

doi: 10.11999/JEIT220916
基金项目: 国家自然科学基金(62171070),重庆市研究生科研创新项目(CYB19176),重庆邮电大学博士研究生人才培养项目(BYJS201905),重庆市博士后科学基金(CSTB2022NSCQ-BHX0043)
详细信息
    作者简介:

    邢媛:女,博士生,研究方向为天地一体化网络、时间敏感网络

    徐川:男,博士,教授,研究方向为时间敏感网络、天地一体化网络、工业互联网

    纪伟星:男,硕士生,研究方向为时间敏感网络

    赵国锋:男,博士,教授,研究方向为时间敏感网络、工业互联网、天地一体化网络、网络测量

    程克非:男,博士,教授,研究方向为网络空间安全、网络攻击与防御

    通讯作者:

    徐川 xuchuan@cqupt.edu.cn

  • 中图分类号: TN927;TP393

Research on Wired and Wireless Time Slots Converged Scheduling Scheme for Satellite Formation Flying

Funds: The National Natural Science Foundation of China (62171070), Chongqing Postgraduate Research and Innovation Project (CYB19176), Chongqing University of Posts and Telecommunications Ph.D. Postgraduate Talent Cultivation Project (BYJS201905), Chongqing Post-Doctoral Science Fund Project (CSTB2022NSCQ-BHX0043)
  • 摘要: 针对卫星编队飞行场景中星内有线和星间无线链路传输速率以及调度机制的差异性引起的时敏任务在星上转发时延不确定性的问题,该文提出一种有线无线融合的时隙调度方案。首先,分别构建星间无线链路传输速率、星间无线调度以及星内有线调度模型;其次,联合有线和无线链路传输速率以及二者时隙位置关系,建立有线无线融合调度与星上转发时延关联分析模型;最后,为确保时敏业务每次在星上传输的时延稳定性,在时延分析模型基础上以抖动最小为融合调度优化目标,并采用遗传禁忌搜索算法进行求解。仿真结果表明,相比于非融合调度方案,所提融合调度方案的抖动不高于40 μs,转发时延平均降低了20%。
  • 图  1  有线无线融合调度研究思路

    图  2  TDMA周期H与子周期Ti关系

    图  3  基于有线无线融合调度的转发时延构成

    图  4  有线无线融合的卫星编队飞行仿真场景

    图  5  时敏业务的平均抖动

    图  6  时敏业务的平均转发时延

    算法1 基于遗传禁忌搜索的融合调度算法(GTS-CSA)
     输入:所有流fi的5元组信息,卫星编队拓扑信息,迭代次数Q
     输出:平均抖动,有线时隙调度集合O,无线时隙调度集合R
     (1) 计算TDMA超帧长度H=lcm{T1, T2,···,TN};
     (2) 计算流fi在一个TDMA超帧内的子周期数目Mi
     (3) 计算流fi在第m个子周期内需要的时隙个数si,m
     (4) 按照转发时延要求由高到低对流fi进行排序;
     (5) FOR EACH ${{\boldsymbol{f}}_i} \in F$ DO
     (6)  采用贪婪算法计算初始解;
     (7) WHILE qQ DO
     (8)  锦标赛选择算法;
     (9)  两点交叉算法;
     (10) 基于禁忌搜索的变异算法;
     (11) q=q+1;
     (12) END WHILE
     (13) END FOR
    下载: 导出CSV

    表  1  仿真参数设置

    参数
    编队中卫星的数目10颗
    卫星轨道高度900 km
    平均SNR22.4 dB
    每颗卫星内部终端数目5~8台
    时敏业务流数目1~20条
    有线链路传输速率100 Mbit/s
    无线链路传输速率10~15 Mbit/s
    单位无线时隙长度500 μs
    时敏业务发送周期取值范围8~60 ms
    时敏业务数据量大小取值范围1~12 kbit
    非时敏业务数据量大小取值范围1~20 Mbit
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-07-06
  • 修回日期:  2023-03-08
  • 网络出版日期:  2023-03-13
  • 刊出日期:  2023-12-26

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