| 講演名 | 2007/10/25 Development of Satellite and Terrestrial Convergence Technology for Internet Services on High-Speed Trains : Service Scenarios(Application-II) , |
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| PDFダウンロードページ | PDFダウンロードページへ |
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| 抄録(英) | Recently, the demands for the satellite broadband mobile communication services are increased. To provide these services, mobile satellite communication systems for the passengers or crews on the high-speed moving vehicles, are being developed for the last several years especially in the Europe and North America. However, most of these systems can provide only several hundred kbps of transmission rate and this is not enough performance to provide satellite internet service for the group users such as passengers on the high-speed train. Moreover, service availability with these systems is limited to be rather low because they don't have any countermeasure scheme for the N-LOS environment which happens often along the railway. This paper describes mobile broadband satellite communication system, which is on the development, to provide high data-rate internet services to the high-speed trains. This system is applied with the internetworking scenarios of both satellite/terrestrial network and satellite/gap-filler network so that it can provide seamless service even in the train operating environment, and these inter-networking schemes result in high service availability. And this system also has the countermeasure schemes, such as upper layer FEC and antenna diversity, for the short fading which is occurred periodically on the railway due to the power supplying structures so that it can provide high speed internet services. Mobile DVB-S2 technology which is now being standardized in the DVB is used for the forward-link transmission and DVB-RCS for the return-link. |
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| キーワード(英) | bi-directional satellite communication / DVB-S2 / DVB-RCS / mobile satellite communication / gap-filler / diversity |
| 資料番号 | SAT2007-41 |
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| 研究会 | SAT |
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| 開催期間 | 2007/10/25(から1日開催) |
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| 申込み研究会 | Satellite Telecommunications (SAT) |
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| 本文の言語 | ENG |
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| タイトル（英） | Development of Satellite and Terrestrial Convergence Technology for Internet Services on High-Speed Trains : Service Scenarios(Application-II) |
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| キーワード(1)（和/英） | / bi-directional satellite communication |
| 第 1 著者 氏名（和/英） | / Min-Su Shin |
| 第 1 著者 所属（和/英） | Global Area Wireless Technology Research Group, ETRI |
| 発表年月日 | 2007/10/25 |
| 資料番号 | SAT2007-41 |
| 巻番号（vol） | vol.107 |
| 号番号（no） | 299 |
| ページ範囲 | pp.- |
| ページ数 | 7 |
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