An Evaluation of ABR Switching for Time-Shifted Clients in MoQ

Abanisenioluwa Orojo; Tanvir Redoy; Samira Afzal; Andrew C. Freeman

An Evaluation of ABR Switching for Time-Shifted Clients in MoQ

Image and Video Processing 2026-06-24 v1 Multimedia Networking and Internet Architecture

Authors: Abanisenioluwa Orojo , Tanvir Redoy , Samira Afzal , Andrew C. Freeman

Abstract

Media over QUIC enables ultra low latency video streaming over QUIC, but its default quality-switching semantics risk introducing playback gaps during periods of network congestion. The in-progress SWITCH specification for MOQ Transport aims to streamline rate adaptation for MoQ. In this work, we characterize the performance of SWITCH-style Adaptive Bitrate (ABR) for both live and time-shifted clients in a Mininet simulated topology. We validate that standard ABR algorithms can be directly applied to time-shifted playback without modification, yielding substantially higher throughput. We demonstrate that a subscriber can experience increased overall throughput after a rebuffering scenario, and we identify focal points for further optimizations of MoQ ABR switching.

Keywords

Media over QUIC adaptive bitrate ABR switching time-shifted streaming low latency video MoQ transport

Cite

@article{arxiv.2606.26368,
  title  = {An Evaluation of ABR Switching for Time-Shifted Clients in MoQ},
  author = {Abanisenioluwa Orojo and Tanvir Redoy and Samira Afzal and Andrew C. Freeman},
  journal= {arXiv preprint arXiv:2606.26368},
  year   = {2026}
}