Doubling the capacity of a communications satellite system
Two one-way channels are normally used in digital two-way voice communication. Each channel is in effect-used only one half the time. A recent discovery of ours recognized that any one-way channel within a satellite spot-beam can be accessed by anyone in the footprint of the beam. In a two-way voice...
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| Veröffentlicht in: | IEEE communications magazine 1997-10, Vol.35 (10), p.142-147 |
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| container_end_page | 147 |
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| container_title | IEEE communications magazine |
| container_volume | 35 |
| creator | Bradley, J.F. Cooper, P.W. |
| description | Two one-way channels are normally used in digital two-way voice communication. Each channel is in effect-used only one half the time. A recent discovery of ours recognized that any one-way channel within a satellite spot-beam can be accessed by anyone in the footprint of the beam. In a two-way voice call, the two parties alternate (in principle) in their transmissions-when one speaks the other is silent. Therefore, the two can share a single one-way channel and provide continuous use of the channel, their respective transmissions interleaved with one another. This condition is unique to intrabeam communication via satellite (or balloon). In a satellite system, capacity is a valued commodity, where capacity is limited by allocated bandwidth and power available. Under those two constraints of bandwidth and power limitation, the discovery described generates a doubling of capacity. This article addresses this concept and some of the engineering challenges and opportunities arising therefrom. |
| doi_str_mv | 10.1109/35.623998 |
| format | Magazinearticle |
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This article addresses this concept and some of the engineering challenges and opportunities arising therefrom.</description><subject>Applied sciences</subject><subject>Artificial satellites</subject><subject>Constraint optimization</subject><subject>Downlink</subject><subject>Exact sciences and technology</subject><subject>Filling</subject><subject>Frequency division multiaccess</subject><subject>Optical fiber cables</subject><subject>Power system modeling</subject><subject>Resource management</subject><subject>Satellite communication</subject><subject>Satellite telecommunications. 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| ispartof | IEEE communications magazine, 1997-10, Vol.35 (10), p.142-147 |
| issn | 0163-6804 1558-1896 |
| language | eng |
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| source | IEEE Electronic Library Online |
| subjects | Applied sciences Artificial satellites Constraint optimization Downlink Exact sciences and technology Filling Frequency division multiaccess Optical fiber cables Power system modeling Resource management Satellite communication Satellite telecommunications. Space telecommunications Tail Telecommunications Telecommunications and information theory |
| title | Doubling the capacity of a communications satellite system |
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