Retransmission-Based Distributed Video Streaming with a Channel-Adaptive Packet Scheduler

This paper describes a channel-adaptive packet scheduler for improved error control performance in a peer-cooperative distributed media streaming system. The proposed packet-scheduling algorithm was designed for the case in which streaming server peers rely on an errorrecovery strategy using retransmission and application-layer automatic repeat request rather than error protection using forward error correction. The proposed scheduler can maximize retransmission opportunities and reduce the frame loss rate by using the observed channel status from each server peer. Simulation results show that the proposed algorithm enhances errorrecovery performance in distributed multimedia streaming better than other schedulers. key words: error recovery, retransmission, ARQ, distributed media streaming, peer-to-peer, stored-video streaming