I am trying to work out a summation for packet delays which is very similar to the summation for estimating RTT, which is an exponentially weighted moving average. I have modified the estimating RTT summation below (I think I did it correctly) but it does not seem to fit correctly with the part I know is right (where 0.1
has been substituted for u
). If I have written this summation out correctly can someone explain why the summation raises (1-u)
to the ith
power and why the summation replaces u
with (1-u)^n-1
and why the summation is multiplied by u/(1-u)
.
EDIT: If I had not looked at the estimated RTT summation this is what I would have guessed...