Adaptive Coding and Modulation: Does the Bit rate change?

[blade88]

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

 

[greygoo2012]

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