TCP Westwood (TCPW) is a sender-side only modification of TCP Reno congestion control, which exploits end-to-end bandwidth
estimation to properly set the values of slow-start threshold and congestion window after a congestion episode. This paper aims at showing via both mathematical modeling and extensive simulations that TCPW
significantly improves fair sharing of high-speed networks capacity and that TCPW is friendly to TCP Reno. Moreover, we propose
EASY RED, which is a simple Active Queue management (AQM) scheme that improves fair sharing of network capacity especially
over high-speed networks. Simulation results show that TCP Westwood provides a remarkable Jain’s fairness index increment
up to 200% with respect to TCP Reno and confirm that TCPW is friendly to TCP Reno. Finally, simulations show that Easy RED
improves fairness of Reno connections more than RED, whereas the improvement in the case of Westwood connections is much smaller
since Westwood already exhibits a fairer behavior by itself.