Abstract: Aspects of the subject disclosure may include, for example, selecting a first video service model according to a server hostname determined according to transport layer security (TLS) transaction data associated with a video session transmitted over a network, calculating a plurality of data delivery statistics from the TLS transaction data according to the first video service model, where the plurality of data delivery statistics includes session-level statistics over the video session, transaction-level statistics over each transaction, and temporal feature statistics over intervals of the video session, determining a quality of experience (QoE) metric for the video session from the plurality of data delivery statistics according to a course-grained data QoE model, and adjusting a first network element of the network responsive to the determining the QoE metric for the video session. Other embodiments are disclosed.

Abstract: Aspects of the subject disclosure may include, for example, selecting a first video service model according to a server hostname determined according to transport layer security (TLS) transaction data associated with a video session transmitted over a network, calculating a plurality of data delivery statistics from the TLS transaction data according to the first video service model, where the plurality of data delivery statistics includes session-level statistics over the video session, transaction-level statistics over each transaction, and temporal feature statistics over intervals of the video session, determining a quality of experience (QoE) metric for the video session from the plurality of data delivery statistics according to a course-grained data QoE model, and adjusting a first network element of the network responsive to the determining the QoE metric for the video session. Other embodiments are disclosed.

Abstract: Layered Video Multicast with Retransmissions (LVMR) is a system for distributing video content using layered coding over the Internet. The two key contributions of the system are (1) improving the quality of reception within each layer by retransmitting lost packets given an upper bound on recovery time and applying an adaptive playback point scheme to help achieve more successful retransmission, and (2) adapting to network congestion and heterogeneity using a hierarchical rate control mechanism. A hierarchical rate control system and method is disclosed for regulating the flow of video information in a network by establishing subnet agents for each subnet, and by establishing intermediate agents for each domain. The subnet agents gather information concerning add-layer experiments conducted by receivers in a subnet, and the information is provided to intermediate agents of the domains for regulating data traffic.