The statistics used by
minstrel_ht - Linux's typical WiFi bitrate adaptation algorithm - are published in the file
This file has a table-like structure. According to the sources I could find ([1, 2], didn't check the source code), I've understood that the letters in the 'best rate' column refer to special bitrates which then make part of Minstrel's 'retry chain':
- T : highest throughput
- t : second highest throughput
- P : highest probability of success (i.e., delivery probability)
However, after inspecting the file myself I found a different set of letters: A, B, C, D, BP, CP and DP.
What is the meaning of the letters A, B, C, D, BP, CP and DP in the 'best rate' column of the
I've made an experiment and collected the contents of the
rc_stats_csv over a period of aprox. 2.5 minutes (results here), and verified that A is probably the equivalent to 'highest throughput', and B, C and D to 2nd, 3rd and 4th highest, respectively. The *P probably refer to the rates with better delivery probabilities.