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Communication Systems/Space-Division Multiplexing

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Communication Systems

This page is all about Space-Division Multiplexing (SDM).

  • What is SDM: When we want to transmit multiple messages, the goal is maximum reuse of the given resources: time and frequency. Time-Division Multiplexing (TDM), operates by dividing the time up into time slices, so that the available time can be reused. Frequency-Division Multiplexing (FDM), operates by dividing up the frequency into transmission bands, so that the frequency spectrum can be reused. However, if we remember our work with directional antennas, we can actually reuse both time and frequency, by transmitting our information along parallel channels. This is known as Space-Division Multiplexing.

Technical categorisations

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Spatial Coding

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Multipathing

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Application systems

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MIMO Systems

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Smart antenna

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