Satellite communications systems move into the twenty-first century
Wireless Networks - Special issue: hybrid and satellite communication networks
Issues in satellite personal communication systems
Wireless Networks - Special issue: hybrid and satellite communication networks
A comparison of the IRIDIUM and AMPS systems
IEEE Network: The Magazine of Global Internetworking
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Mobile satellite systems are a crucial component of the future global telecommunications infrastructure. An important aspect of the future system is to manage the location of both users and satellites. This paper presents a strategy for location registration (update) and paging in Low Earth Orbit (LEO) mobile satellite systems. First, we discuss the tradeoff that exists between four proposed satellite location area designations. Then we introduce a scheme that selects a simple location area design and uses hierarchical database architecture to reduce the location management signaling delay. The performance of the scheme is analyzed in terms of the paging bandwidth and the location update signaling delay. Finally, we present the numerical results for several planned systems, such as GlobalStar, ICO, and IRIDIUM.