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An overview is given of the Iridium, satellite-based personal communications system, which will bring cellular telephone service to virtually every point on the globe. Iridium will use low-earth-orbit satellites. Some of the key system-level considerations that have driven the design are highlighted. The services offered by Iridium are described, and some market projections are given.< >
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Jared Grubb (1991) studied this question.
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