MTCR-CR routing strategy for connection-oriented routing over satellite networks

IF 3.1 3区计算机科学 Q2 TELECOMMUNICATIONS

China Communications Pub Date : 2024-05-01 DOI:10.23919/JCC.ea.2021-0646.202401

Changhao Li, Sun Xue, Yan Lei, Cao Suzhi

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引用次数: 0

Abstract

The high-speed movement of satellites makes it not feasible to directly apply the mature routing scheme on the ground to the satellite network. DT-DVTR in the snapshot-based connection-oriented routing strategy is one of the representative solutions, but it still has room for improvement in terms of routing stability. In this paper, we propose an improved scheme for connection-oriented routing strategy named the Minimal Topology Change Routing based on Collaborative Rules (MTCR-CR). The MTCR-CR uses continuous time static topology snapshots based on satellite status to search for intersatellite link(ISL) construction solutions that meet the minimum number of topology changes to avoid route oscillations. The simulation results in Beidou-3 show that compared with DT-DVTR, MTCR-CR reduces the number of routing changes by about 92%, the number of path changes caused by routing changes is about 38%, and the rerouting time is reduced by approximately 47%. At the same time, in order to show our algorithm more comprehensively, the same experimental index test was also carried out on the Globalstar satellite constellation.

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卫星网络上面向连接的 MTCR-CR 路由策略

卫星的高速移动使得将地面上成熟的路由方案直接应用于卫星网络并不可行。基于快照的面向连接路由策略中的 DT-DVTR 是具有代表性的方案之一，但在路由稳定性方面仍有改进空间。本文提出了一种面向连接路由策略的改进方案，即基于协作规则的最小拓扑变化路由（MTCR-CR）。MTCR-CR 利用基于卫星状态的连续时间静态拓扑快照来搜索满足最小拓扑变化次数的卫星间链路（ISL）构建方案，以避免路由振荡。北斗三号的仿真结果表明，与DT-DVTR相比，MTCR-CR减少了约92%的路由变化次数，由路由变化引起的路径变化次数约为38%，重路由时间减少了约47%。同时，为了更全面地展示我们的算法，还在 Globalstar 卫星星座上进行了相同的实验指标测试。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

China Communications 工程技术-电信学

CiteScore

8.00

自引率

12.20%

发文量

2868

审稿时长

8.6 months

期刊介绍： China Communications (ISSN 1673-5447) is an English-language monthly journal cosponsored by the China Institute of Communications (CIC) and IEEE Communications Society (IEEE ComSoc). It is aimed at readers in industry, universities, research and development organizations, and government agencies in the field of Information and Communications Technologies (ICTs) worldwide. The journal's main objective is to promote academic exchange in the ICTs sector and publish high-quality papers to contribute to the global ICTs industry. It provides instant access to the latest articles and papers, presenting leading-edge research achievements, tutorial overviews, and descriptions of significant practical applications of technology. China Communications has been indexed in SCIE (Science Citation Index-Expanded) since January 2007. Additionally, all articles have been available in the IEEE Xplore digital library since January 2013.