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Study on Scheduling Algorithm for High-Power Short Message Delivery via Multiple Non-GSO Satellites
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  • Study on Scheduling Algorithm for High-Power Short Message Delivery via Multiple Non-GSO Satellites
  • Study on Scheduling Algorithm for High-Power Short Message Delivery via Multiple Non-GSO Satellites
저자명
Nomoto. Shinichi,Shibuya. Megumi,Konishi. Satoshi
간행물명
Joint Conference on Satellite Communications
권/호정보
2001년|2001권 1호|pp.291-296 (6 pages)
발행정보
통신위성우주산업연구회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Global short message delivery services via satellites are considered attractive if the service can be supported to indoor subscribers. In order to establish the communications link, it is required to concentrate high transmission power into a spotbeam even by a Non-GSO satellite system with low Earth orbits. The idea can be realized by a kind of TDMA scheme where only a single spotbeam per satellite is fired at a timeslot in an efficiently scheduled manner. The paper proposes a scheduling algorithm that enables each satellite to concentrate its power into a spotbeam illuminating an addressed area at a prescribed timeslot, while causing no interference with other spotbeams from adjacent satellites, so that a subscriber in the area can easily establish the synchronization and efficiently receive a message addressed to him or her. Some numerical evaluations are given for a 6-hour period MEO system, for example, to demonstrate the effectiveness and performances.