TCP Westwood

TCP Westwood does not compute bandwidth estimation correctly. Currently, it uses the RTT as the denominator to compute the bandwidth estimate, which is technically correct for TCP Westwood+. However, this aggressively underestimates the bandwidth for TCP Westwood since the denominator should be the time between two acks, not the RTT of the ACK.

Original paper https://c3lab.poliba.it/images/3/39/Mobi2001.pdf

Original Implementation of TCP Westwood in NS3 https://dl.acm.org/doi/10.5555/2512734.2512757