Sustainable OTT video distribution powered by 5G-multicast/unicast delivery and versatile video coding (original) (raw)

Enabling energy-awareness for internet video

2016

Continuous improvements to the state of the art have made it easier to create, send and receive vast quantities of video over the Internet. Catalysed by these developments, video is now the largest, and fastest growing type of traffic on modern IP networks. In 2015, video was responsible for 70% of all traffic on the Internet, with an compound annual growth rate of 27%. On the other hand, concerns about the growing energy consumption of ICT in general, continue to rise. It is not surprising that there is a significant energy cost associated with these extensive video usage patterns. In this thesis, I examine the energy consumption of typical video configurations during decoding (playback) and encoding through empirical measurements on an experimental test-bed. I then make extrapolations to a global scale to show the opportunity for significant energy savings, achievable by simple modifications to these video configurations. Based on insights gained from these measurements, I propose...

Video Compressionebu Technical Review – 2008 Q2 1 / 22

2015

Scalable Video Coding (SVC) is a recent amendment to the ISO/ITU Advanced Video Coding (H.264/AVC) standard, which provides optional but efficient scalability functionalities on top of the high coding efficiency of H.264/AVC. In addition to bringing a cost-efficient solution to the delivery of different formats of the same content to multiple users, it can be used to provide a better viewing experience (enhanced content portability, device power / content-quality adaptation, fast zapping times and fluid forward / rewind functions, efficient error retransmission, etc.). This article describes the potential of SVC, in terms of applications and performance. A brief overview of SVC functionalities, as well as practical use cases, are given in the following sections. Different performance evaluations, based on test results, are also described. 1.