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| 題 名 | 低軌衛星通訊發展與傳輸層協定之挑戰=Development of LEO Satellite Communications and Challenges of Transport Layer Protocols |
|---|---|
| 作 者 | 詹益禎; 羅翊軒; | 書刊名 | 前瞻科技與管理 |
| 卷 期 | 13:2 2025.05[民114.05] |
| 頁 次 | 頁73-86 |
| 分類號 | 448.79 |
| 關鍵詞 | 一網; 低軌衛星通訊; 星鏈; 傳輸層協定; 網際網路; OneWeb; LEO satellite communications; Starlink; Transport layer protocol; Internet; |
| 語 文 | 中文(Chinese) |
| DOI | 10.6193/JATM.202505_13(2).0005 |
| 中文摘要 | 隨著通訊需求的快速增長,低軌(Low Earth Orbit, LEO)衛星通訊已逐漸成為全球無縫網路覆蓋的解決方案。由於LEO衛星具備較低的延遲和更廣泛的訊號覆蓋範圍,相較於地球同步軌道(Geostationary Earth Orbit, GEO)衛星和中軌(Medium Earth Orbit, MEO)衛星在許多應用場景中顯得更加優越,隨著如星鏈(Starlink)、一網(OneWeb)等計畫的推動,LEO衛星通訊正處於快速發展階段。然而,LEO衛星網路的動態環境卻對當今網際網路上被廣泛使用的輸層協定TCP(Transmission Control Protocol)衍生新的挑戰。LEO衛星網路頻繁的衛星換手、較高的位元錯誤率以及變動的往返時間等諸多問題,導致其效能顯著下降。本文整理了LEO衛星通訊發展歷史與現況並描述LEO衛星通訊對於傳輸層協定TCP之挑戰。 |
| 英文摘要 | With the rapid growth of communication needs, Low Earth Orbit (LEO) satellite communications have gradually become a solution for seamless global network coverage. Due to the lower latency and wider signal coverage of LEO satellites, they are superior to geostationary Earth Orbit (GEO) satellites and medium Earth Orbit (MEO) satellites in many application scenarios. With the promotion of projects such as Starlink and OneWeb, LEO satellite communications are in a rapid development stage. However, the dynamic environment of LEO satellite networks has brought new challenges to the transmission layer protocol TCP (Transmission Control Protocol) widely used in the Internet today. The LEO satellite network has many problems, such as frequent satellite handovers, high bit error rates and variable round-trip times, which cause its performance to be significantly reduced. This article summarizes the development history and current status of LEO satellite communications and describes the challenges that LEO satellite communications pose to the transport layer protocol TCP. |
本系統中英文摘要資訊取自各篇刊載內容。