MTCP: Scalable TCP-like Congestion Control for Reliable Multicast

We present MTCP, a congestion control scheme for large-scale reliable multicast. Congestion control for reliable multicast is important, because of its wide applications in multimedia and collaborative computing, yet nontrivial, because of the potentially large number of receivers involved. Many schemes have been proposed to handle the recovery of lost packets in a scalable manner, but there is little work on the design and implementation of congestion control schemes for reliable multicast. We propose new techniques that can effectively handle instances of congestion occurring simultaneously at various parts of a multicast tree. Our protocol incorporates several novel features: (1) hierarchical congestion status reports that distribute the load of processing feedback from all receivers across the multicast group, (2) the relative time delay (RTD) concept which overcomes the difficulty of estimating round-trip times in tree-based multicast environments, (3) window-based control that p...

• Type: Conference
• Year: 1999
• Where: INFOCOM
• Authors: Injong Rhee, Nallathambi Balaguru, George N. Rouskas
• Keywords: Communications, Congestion Control, Congestion Control Schemes, INFOCOM 1999, Reliable Multicast