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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1996.1
- 수록면
- 674 - 686 (13page)
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The recent advances in the Low Earth Orbit(LEO) satellite communication systems are taking personnel communications to new heights. The IRIDIUM Communication System (ICS) is such a global personal communication system. The system is supported by a constellation of 66 satellites in low earth orbit 780 Km above the planet, a network of earth-based "Gateway" switching installations, and a ground station to control satellite commands and telemetry. The IRIDIUM system offers subscribers hand held wireless telephony to anyone, anytime, any place.
The IRIDIUM Communication System is characterized by several distinguishing attributes, among which are the inter-satellite links in the constellation, its geographically controlled system access process and GSM (Global System for Mobile Communications) based telephony architectrue. GSM is a popular digital cellular standard which offers a Wealth of features to subscribers and is continuously being enhanced with new features. In addition, IRIDIUM System-unique processes are incorporated to manage the dynamic nature of the satellite constellation. This paper will provide an overview of the ICS and the system call processing fundamentals upon which the network services are implemented.
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