Video Classification and Adaptive QoP/QoS Control for Multiresolution Video Applications on IPTV

With the development of heterogeneous networks and video coding standards, multi-resolution video applications over networks become important. It is critical to ensure the service quality of the network for time-sensitive video services. In this paper, the authors present a quality control mechanism in multi-resolution video coding structures over WIMAX networks and also investigate the relationship between QoP and QoS in end-to-end connections. Consequently, the video presentation quality can be simply mapped to the network requirements by a mapping table, and then the end-to-end QoS is achieved. They performed experiments with multi-resolution MPEG coding over WIMAX networks. In addition to the QoP parameters, the video characteristics, such as, the picture activity and the video mobility, also affect the QoS significantly.

Provided by: Hindawi Publishing Topic: Mobility Date Added: Apr 2012 Format: PDF

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