Hairpin: Rethinking Packet Loss Recovery in Edge-based Interactive Video Streaming

Explore a groundbreaking approach to packet loss recovery in edge-based interactive video streaming presented at NSDI '24. Delve into the innovative Hairpin mechanism, which optimizes redundancy settings for retransmissions to achieve both low bandwidth costs and reduced deadline miss rates. Learn how this novel solution differentiates retransmissions and finds the optimal combination of data packets, retransmissions, and redundant packets over multiple transmission rounds. Discover the impressive results from production deployments, showcasing Hairpin's ability to simultaneously reduce bandwidth costs by 40% and deadline miss rates by 32% on average compared to state-of-the-art solutions. Gain insights into the challenges of minimizing stuttering events in interactive streaming and understand how Hairpin addresses these issues to ensure seamless user-application interaction.