Name
DASH and Media-over-QUIC Transport Face-Off: Performance Showdown at Low Latency
Date & Time
Monday, October 21, 2024, 5:00 PM - 5:30 PM
Description

Low-Latency Dynamic Adaptive Streaming over HTTP (LL-DASH) uses CMAF and HTTP's chunked transfer encoding to reduce media delivery latency to levels comparable with traditional broadcasting. To achieve even lower latencies, the IETF is developing Media-over-QUIC Transport (MOQT), a QUIC-based solution. This paper explores if MOQT could replace DASH, LL-DASH, and other UDP-based protocols, including WebRTC, as the ultimate media transport protocol. LL-DASH and its Low-Latency HLS counterpart focus on low-latency live streaming with end-to-end latencies of 1-10 seconds. MOQT, still under development, aims for latencies of one second or less, suitable for interactive scenarios like live commentary and online gambling. It could also serve applications needing stringent interactivity and feedback, such as videoconferencing and remote control of hardware. Despite challenges like UDP blockage and CPU overhead, MOQT shows promise as a unified protocol for media and real-time communications.

Technical Depth of Presentation
Intermediate
Take-Aways from this Presentation

Main building blocks of MOQT, including client-side rate adaptation, prioritization and configurable latency budget Active and passive bandwidth measurements (Open-source) MOQT implementation details Experimental results comparing LL-DASH and MOQT