Active delay and loss adaptation in overlay multicast tree

In this paper, the adaptive overlay multicast (AOM) protocol is presented, which is specially beneficial to long-lasting, large data distribution applications with large receiver sets. AOM distinguishes itself from the previous research with the following characteristics: (1) scalable overlay multicast tree construction method and a scoping technique to decrease overhead, (2) active adaptation to dynamic network conditions, and (3) efficient loss measurement and adaptation algorithms. We present extensive simulations of AOM including real Internet data and compare it with a HMTP-like protocol. The results show that AOM builds high-quality trees and adapts well to the network conditions while incurring low overhead.