One rapid from smithfd-rapid22 to smithfd-rapid21, Gap Epsilon= 2us, Alpha= 0.875/0.9375 for exponential smoothing. The single rapid flow lasts for 1 minute. UDP Cross traffic from smithfd-rapid6 to smithfd-rapid3 lasts from 20s to 40s.
NOTE: The reason why gap=1us fails to work is simply because that the excursion threshold is too small. When alpha= 15/16, we smooth too much and the result becomes even worse. I verified abests with my scripts for the experiment and the calculation was correct. But when cross traffic enter, 1us becomes a better choice.
In pstream 120, the first large value contributes to the single excursion starts from the very begining. Abest= 53Mbps.
In pstream 756, 1us is too small and excursion from 0-13, abest= 81Mbps.
One Example of Underestimation: pstream 2154 ABest=222Mbps
pstream 2160 ABest=80Mbps
One Example of Overestimation: pstream 2234 ABest=762Mbps
pstream 1165 ABest= 746Mbps
Number of segments dropped: around 110 for another experiment with the same setting
One Example of Underestimation: pstream 1969 ABest=512Mbps
The first spike leads to low abest
pstream 1975 ABest=492Mbps
pstream 1570 ABest=258Mbps
pstream 1580 ABest=379Mbps
EXP_AVG leads to low highest smoothed probing rate