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Adaptive Coding and Modulation: Does the Bit rate change?

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blade88

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Hi,

In adaptive coding and modulation (ACM) the modulation and coding change, according to the channel conditions.

As I understand, the useful information throughput is changed: when the channel is "bad", the coding bits increase and when the channel is "good", the coding bits decrease.

However, does the bit rate change?

thank you
 

Bit rate changes when the modulation changes. However, if you are just choosing different code rates, bit rate doesn't change.
 
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