Research of Adaptive Routing Scheme for LEO Network

2019 IEEE 5th International Conference on Computer and Communications (ICCC) Pub Date : 2019-12-01 DOI:10.1109/ICCC47050.2019.9064312

Yuancao Lv, Chuan Xing, Nan Xu, Xiaodong Han, Feng-Chao Wang

{"title":"Research of Adaptive Routing Scheme for LEO Network","authors":"Yuancao Lv, Chuan Xing, Nan Xu, Xiaodong Han, Feng-Chao Wang","doi":"10.1109/ICCC47050.2019.9064312","DOIUrl":null,"url":null,"abstract":"Low Earth Orbit (LEO) satellite network is becoming an increasingly hot topic in satellite communication since it provides shorter round-trip delays compared with Geostationary Earth Orbit (GEO) satellites. Due to the rapid topology changes in the LEO constellation, its routing protocol should be different from existing protocols harnessed for the terrestrial networks. Based on the periodicity and predictability characteristics of LEO network, static routing algorithms are most commonly used. The topology snapshots and corresponding forwarding tables are calculated in advance so as to save the on-board computing resources. However, the static routing algorithm is not compatible with sudden link failure, which reduces its robustness. In this paper, a static-dynamic combined routing strategy is proposed as an adaptive routing scheme to LEO satellite networks. The new scheme captures both the higher robustness compared with static routing algorithms and lower packet loss, higher throughput compared with dynamic routing algorithms.","PeriodicalId":6739,"journal":{"name":"2019 IEEE 5th International Conference on Computer and Communications (ICCC)","volume":"40 1","pages":"987-992"},"PeriodicalIF":0.0000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE 5th International Conference on Computer and Communications (ICCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCC47050.2019.9064312","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 6

Abstract

Low Earth Orbit (LEO) satellite network is becoming an increasingly hot topic in satellite communication since it provides shorter round-trip delays compared with Geostationary Earth Orbit (GEO) satellites. Due to the rapid topology changes in the LEO constellation, its routing protocol should be different from existing protocols harnessed for the terrestrial networks. Based on the periodicity and predictability characteristics of LEO network, static routing algorithms are most commonly used. The topology snapshots and corresponding forwarding tables are calculated in advance so as to save the on-board computing resources. However, the static routing algorithm is not compatible with sudden link failure, which reduces its robustness. In this paper, a static-dynamic combined routing strategy is proposed as an adaptive routing scheme to LEO satellite networks. The new scheme captures both the higher robustness compared with static routing algorithms and lower packet loss, higher throughput compared with dynamic routing algorithms.

查看原文本刊更多论文

LEO网络自适应路由方案研究

与地球静止轨道卫星相比，低地球轨道卫星网络具有更短的往返时延，正日益成为卫星通信领域的研究热点。由于低轨道星座的快速拓扑变化，其路由协议应不同于现有的地面网络协议。基于LEO网络的周期性和可预测性，静态路由算法是最常用的算法。为了节省板载计算资源，可以提前计算拓扑快照和相应的转发表。但是静态路由算法不兼容突发链路故障，降低了算法的鲁棒性。本文提出了一种静态-动态组合路由策略，作为低轨道卫星网络的自适应路由方案。该方案具有比静态路由算法更高的鲁棒性和比动态路由算法更低的丢包率和更高的吞吐量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2019 IEEE 5th International Conference on Computer and Communications (ICCC)

自引率

0.00%

发文量