| 基于区域分流的低轨卫星星座星间负载均衡路由算法 |
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| 引用本文： | 周雅,谢卓辰,刘沛龙,刘会杰. 基于区域分流的低轨卫星星座星间负载均衡路由算法[J]. 中国科学院大学学报, 2021, 38(5): 687-695. DOI: 10.7523/j.issn.2095-6134.2021.05.013 |
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| 作者姓名： | 周雅 谢卓辰 刘沛龙 刘会杰 |
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| 作者单位： | 1. 中国科学院微小卫星创新研究院, 上海 201203;2. 中国科学院大学, 北京 100049;3. 清华大学北京信息科学与技术国家研究中心, 北京 100084 |
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| 基金项目： | 上海市青年科技英才扬帆计划（17YF1418200）和国家自然科学基金重大研究计划重点项目（91738201）资助 |
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| 摘 要： | 低轨卫星通信网络具有流量分布不均、地面站分布不均且网络负载随时间变化等特点.卫星与就近地面站间的数据传输将会导致空间段动态漏斗型拥塞,进而引发馈线拥塞并劣化端到端通信指标.提出基于区域分流的多径搜索负载均衡路由算法(regional-traffic-detour multipath search load balanc...
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| 关 键 词： | 区域分流 多径路由 负载均衡 地面站 |
| 收稿时间： | 2019-12-05 |
| 修稿时间： | 2020-02-28 |
Inter-satellite load balancing routing algorithm for LEO satellite constellation based on regional-traffic-detour |
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| ZHOU Ya,XIE Zhuochen,LIU Peilong,LIU Huijie. Inter-satellite load balancing routing algorithm for LEO satellite constellation based on regional-traffic-detour[J]. , 2021, 38(5): 687-695. DOI: 10.7523/j.issn.2095-6134.2021.05.013 |
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| Authors: | ZHOU Ya XIE Zhuochen LIU Peilong LIU Huijie |
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| Affiliation: | 1. Innovation Academy for Microsatellites, Chinese Academy of Sciences, Shanghai 201203, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Beijing National Research Center for Information Science And Technology, Tsinghua University, Beijing 100084, China |
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| Abstract: | The LEO (low earth orbit) satellite communication networks are characterized by non-uniform traffic distribution, unevenly ground station distribution, and time-varying network load. The data transmission between satellites and the nearby ground stations may lead to dynamic funnel-type congestion in the space segment. It will result in the congestion of the feeder link congestion and the worse end-to-end characteristics. In this article, a regional-traffic-detour multipath search load balancing routing algorithm (RMLBR) is proposed. RMLBR calculates the transition probability according to satellite network status and the source-to-destination distance to implement the regional-traffic-detouring. Under the constraint of path delay, the optimal path and alternative path are obtained by the multipath search to alleviate the dynamic funnel-type congestion. The simulation shows that RMLBR can alleviate the funnel-type congestion, reduce the end-to-end delay, the packet loss, and the size of the high flow area compared with TLR(traffic-light based intelligent routing strategy) and ELB (explicit load balancing). |
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| Keywords: | regional-traffic-detour multipath routing load balancing ground station |
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