Congratulations to Zuji Zhou for successfully defending his Master's thesis "Multipath Media-over-QUIC (MoQ) for Video Conferencing Applications"!
Zuji's research tackles a fundamental mismatch in real-time media delivery: single-path transport cannot meet the latency and quality demands of modern video conferencing, yet transport-layer multipath has no insight into which frames or objects actually matter to the application. To bridge that gap, he designed MoMQ (Media over Multipath QUIC), an extension to the Media-over-QUIC Transport (MoQT) protocol that introduces a rule-based mechanism allowing endpoints to install object-to-path mapping rules. This lets MoQ relays distribute media intelligently across multiple network paths while remaining application-agnostic — keeping the elegance of MoQT's pub/sub model while adding the scheduling expressiveness real-time applications need.
The prototype was evaluated on a heterogeneous testbed combining WiFi and a Low Earth Orbit satellite link. Using just four declarative scheduling rules, MoMQ reduced P99.9 frame completion time by 39% compared to the best single-path baseline, while consuming only ~8% of traffic on the metered backup path. The results show that application-aware multipath scheduling meaningfully outperforms transport-only approaches and points to a practical path for deploying MoQ over the hybrid terrestrial-satellite networks SPEAR Lab studies.
The thesis was supervised by Nitinder Mohan, Fernando Kuipers, and Tanya Shreedhar, with Georgios Smaragdakis serving on the defense committee. The full thesis is available on the TU Delft repository.
We wish Zuji all the best in his future endeavors!