ETCC: a congestion control scheme for real-time multimedia streaming

With the increasing applications of real-time multimedia on Internet, an ECN-based TCP-friendly congestion control (ETCC) scheme was proposed, in which both end host and router were involved. RED was adopted in the router, and early congestion state was notified to the sender using ECN. Sending rate could be adjusted according to the rate scheme in the end host. The simulation showed that ETCC could adjust sending rate smoothly, decrease delay and packet loss ratio while maintaining good TCP-friendliness.