EMVOD: Elastic Multi-Path QUIC Scheduling for CDN Video-on-Demand Service

Video-on-demand (VoD) is one of the core CDN services, yet current VoD services commonly face video stuttering and long first-frame latency due to poor transmission path conditions. Existing solutions using Multi-path QUIC (MPQUIC) to address these issues cannot activate cellular paths on demand, causing massive traffic waste; additionally, some solutions depend on dedicated clients for application-layer information, precluding large-scale deployment. To address these limitations, we propose EMVOD, an elastic multi-path QUIC scheme deployed only on CDN edge nodes. It parses client-requested videos, dynamically activates cellular networks on demand, and prioritizes smooth video playback with minimal cellular traffic, while significantly reducing stuttering duration and first-frame latency.