Background
Network service providers are actively deploying triple and quadruple play networks that deliver
voice, video and data over shared IP infrastructure. The success of this approach largely depends
upon the widespread acceptance of the service by end users. Customers are interested in a high
quality of experience (QoE) in return for what they pay to service providers. The
service providers, on the other hand, need to understand what a high quality of experience means
to end users, while maximizing utility of shared infrastructure and retaining a large number of
customers.
Research in NetMoC
Network service providers are hence realizing the need to characterize a video stream in terms of
QoE rather than Quality of Service (QoS). QoS has long been used to
assure service guarantees with typical parameters like bandwidth, delay, and jitter. However, QoS
lacks an important element in characterizing video streams: that of human subjectivity. Human
perception of the video is best characterized in terms of QoE, which attempts to directly measure
the reaction of a human subject when the video is played out. This form of subjective quality
assessment is in contrast to traditionally used objective assessment techniques.
People
- Faculty: Mainak Chatterjee
- Students: Mukundan Venkataraman