Energy-aware MPEG-4 FGS streaming

Authors:
Kihwan Choi;Kwanho Kim;Massoud Pedram
Affiliations:
University of Southern California, Los Angeles, CA;Seoul National University, Korea;University of Southern California, Los Angeles, CA
Venue:
Proceedings of the 40th annual Design Automation Conference
Year:
2003

Citing 1
Cited 3

Overview of fine granularity scalability in MPEG-4 video standard

IEEE Transactions on Circuits and Systems for Video Technology

Distributed Multimedia System Design: A Holistic Perspective

Proceedings of the conference on Design, automation and test in Europe - Volume 2
Hybrid layered video encoding and caching for resource constrained environments

Journal of Visual Communication and Image Representation
Maximum-utility scheduling of operation modes with probabilistic task execution times under energy constraints

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems

Quantified Score

Hi-index	0.00

Visualization

Abstract

In this paper, we propose an energy-aware MPEG-4 FGS video streaming system with client feedback. In this client-server system, the battery-powered mobile client sends its maximum decoding capability (i.e., its decoding aptitude) to the server in order to help the server determine the additional amount of data (in the form of enhancement layers on top of the base layer) per frame that it sends to the client, and thereby, set its data rate. On the client side, a dynamic voltage and frequency scaling technique is used to adjust the decoding aptitude of the client while meeting a constraint on the minimum achieved video quality. As a measure of energy efficiency of the video streamer, the notion of a normalized decoding load is introduced. It is shown that a video streaming system that maintains this normalized load at unity produces the optimum video quality with no energy waste. We implemented an MPEG-4 FGS video streaming system on an XScale-based testbed in which a server and a mobile client are wirelessly connected by a feedback channel. Based on the actual current measurements in this testbed, we obtain an average of 20% communication energy reduction in the client by making the MPEG-4 FGS streamer energy-aware.