Algorithm 4: BA-MPCUBIC: Time synchronization between the SFs for RTT_filter, ECN_filter, and PL_filter

Initialization:

current_time = system_current_time

update_time_of_RTT_filter = current_time + 1.0 sec

sync = false

Upon reception of ACK:

temp_update_time = system_current_time + 3.0 sec

if sync = false then

for all subflow i do

if current_time < update_time_of_ RTT_filter_ SFi and temp_update_time > update_time_of_ RTT_filter_ SFi then

temp_update_time = update_time_of_ RTT_filter_ SFi

end if

update_time_of_ RTT_filter = temp_update_time

update_time_of_ ECN_filter = temp_update_time

sync = true

end for

end if