VICTOR: Video Content-aware Partially Reliable Transmission over Multipath QUIC.

Over the past few years, video streaming has been dominating the internet traffic. The Quick UDP Internet Connections (QUIC) protocol and its support for both reliable and un-reliable transmission may exhibit attractive advantages for video streaming. Multipath transport techniques like Multi-Path QUIC (MPQUIC) are introduced to aggregate the bandwidth of multiple links and to provide reliable transmission in poor network conditions. However, how to leverage unreliable transmission for video streaming over MPQUIC has not been explored yet. Motivated by extensive experimental observations, we propose VICTOR, video content-aware partially reliable transmission over multipath QUIC. Specifically, VICTOR exploits both reliable and unreliable transmission to improve the quality of experience (QoE) perceived by users. Besides, the scheduling mechanism of MPQUIC is examined and VICTOR split video frames over multiple paths with the perception of QoE. We evaluate VICTOR experimentally in both simulations and a lab testbed. The results reveal that VICTOR can achieve better performance compared with the latest MPTCP and MPQUIC protocols.