For consumers, the quality of video streaming is a very direct indicator of network quality – and one that is easy to perceive.
For the mobile network operator, the ability to deliver a positive video experience to subscribers is therefore hugely important. It is also directly related to their abilit
y to introduce new services that are based on or use video, such as teleconferencing, live video broadcasts, video chat, gaming and AR/VR.
However, since most video delivery is managed by servers and clients that are out of the operator’s control, it is essential that operators can test video services in order to get a good understanding of how their end users are experiencing video.
This paper discusses the challenges operators and content providers must overcome in order to deliver high-quality and consistently available video services.
It then explains how to measure perceived video quality in a mobile network, and to benchmark operator performance against competitors.
Building up from first principles, this Rohde & Schwarz MNT paper describes how video services are delivered, including:
– The basics of video delivery and the difference between video delivery methods content
– An analysis of transmission protocols and how they work
– How various delivery strategies result in different usages of network resources
– Where and how adaptive bitrate and compression decisions and delivery are made
– Video codecs and compression techniques such as management of colour space and image object
It then provides a full technical explanation of video testing and recommends the best approaches:
– Assessing resolution and video quality
– Image-based video quality measures: no-reference” and “full-reference” model
– Bitstream-based video quality measures
– Measurement standards such as ITU J.341 VQuad and J.343.1 VMon
– Benchmarking video services in the field: understanding how a network performs relative to its competitors
Fill in the form below to access the paper:
