Due to the serious effectiveness of congestion
problem in the Internet performance, congestion control has
the most concern in the network community. Several End-to-
End mechanisms were developed to overcome this problem.
However, most of the existing mechanisms adapt the sending
rate at the sender, when detecting congestion, without
considering the network status. This behavior degrades the
Internet performance. This paper presents a new fuzzy
controller to adjust the sending rate at the sender dynamically
based on the network load. The intended controller is
employed to enhance the TCP-Vegas and the performance is
evaluated by using the well-known Network Simulator NS-2.
The results indicate that the intended controller the AT&T
real network increases the throughput and decreases both the
packet loss and packet delay.