MultiMoQ: Multi-Access Media-Over-QUIC for Robust Immersive Video Streaming

2026-08-06

AI Summary

This work addresses critical challenges in high-bitrate immersive video streaming under high-concurrency scenarios, including coarse response granularity, poor coordination among multiple tiles, and playback stuttering under bandwidth constraints. To overcome these limitations, the authors propose a multi-access tiled streaming framework based on Media over QUIC (MoQ), which for the first time integrates multipath control into the MoQ architecture. By enabling tile-level fine-grained scheduling and a network-aware seamless access switching mechanism, the framework achieves robust high-bitrate transmission across heterogeneous paths. Experimental results demonstrate that the proposed solution significantly improves effective throughput for both base-layer video and enhancement tiles, reduces tail end-to-end latency for enhancement tiles, and effectively mitigates playback stuttering under constrained bandwidth, thereby delivering a smoother viewport experience compared to conventional DASH and standard MoQ approaches.

Abstract

Live immersive video streaming, particularly 360-degree video, is increasingly adopted in applications such as virtual events, sports broadcasting, and remote education. Existing approaches struggle to support high-bitrate immersive streaming for large numbers of concurrent users, with coarse-grained delivery limiting responsiveness and insufficient support for coordinating concurrent tile streams. Media over QUIC (MoQ) has recently emerged as a promising solution for large-scale media delivery, yet it lacks robustness under bandwidth-constrained conditions, often resulting in playback stalls. To address these challenges, we present MultiMoQ, a multi-access tile streaming framework built on MoQ that redesigns its delivery mechanism for robust high-bitrate streaming across multiple access paths while supporting flexible tile scheduling and seamless access switching. We implement a fully functional prototype of MultiMoQ and evaluate it in network emulation under heterogeneous real-world network conditions, comparing against Dynamic Adaptive Streaming over HTTP (DASH) and standard MoQ. Results show that MultiMoQ increases goodput for enhancement tiles and base video and reduces enhancement-tile tail end-to-end latency relative to DASH, while preserving audio continuity and avoiding the persistent stalls of standard MoQ. These transport gains translate into smoother viewport playback, and the ablation results further confirm the contribution of multi-access control to playback continuity.

Problem

• immersive video streaming
• 360-degree video
• Media over QUIC
• multi-access
• tile-based streaming

Innovation

• Multi-access
• Media-over-QUIC
• Immersive video streaming
• Tile scheduling
• Robust transport