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Over the past years, the video streaming industry has focused great interest in Low-Latency streaming protocols, targeting a sub-5-seconds end-to-end delay comparable to live broadcast TV. Such low delays are considered critical for streaming live sports, gaming, online learning, and interactive video applications, but are hard to achieve using traditional HTTP-based live streaming technologies. Media Over QUIC (MoQ) has been proposed as a promising alternative for ultra-low delay streaming, but limited network infrastructure compatibility and the lack of a mature and optimized custom application-layer protocol have been major hurdles for practical deployments. In this paper, we discuss the alternative use of WebRTC data channels to achieve latencies lower than two seconds on live streaming applications.
Francisco et al. (Sun,) studied this question.