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Packet switching in a processing satellite

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2 Author(s)
DeRosa, J.K. ; M. I. T., Lexington, Mass. ; Ozarow, L.H.

This brief note represents a simple but significant change in the thinking that is applied to satellite packet switching. It demonstrates that in a precessing satellite there is no fundamental limitation to the efficiency and throughput of packet switching systems. With a minimal impact on spacecraft weight and power, throughput is increased by providing more capacity on the uplink than on the downlink. Efficiency is increased because the power-intensive downlink is more fully utilized. A slotted ALOHA example is given to show how the performance can be made to go from that of conventional slotted ALOHA to that of a TDM system. Several possible variations and far-reaching implications are indicated.

Published in:

Proceedings of the IEEE  (Volume:66 ,  Issue: 1 )