Comparing algorithm for dynamic speed-setting of a low-power CPU
MobiCom '95 Proceedings of the 1st annual international conference on Mobile computing and networking
ISLPED '95 Proceedings of the 1995 international symposium on Low power design
Digital integrated circuits: a design perspective
Digital integrated circuits: a design perspective
Scheduling techniques for variable voltage low power designs
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Power optimization of variable voltage core-based systems
DAC '98 Proceedings of the 35th annual Design Automation Conference
Power conscious fixed priority scheduling for hard real-time systems
Proceedings of the 36th annual ACM/IEEE Design Automation Conference
Cycle-accurate simulation of energy consumption in embedded systems
Proceedings of the 36th annual ACM/IEEE Design Automation Conference
Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
Variability in the execution of multimedia applications and implications for architecture
ISCA '01 Proceedings of the 28th annual international symposium on Computer architecture
Digital Video: An introduction to MPEG-2
Digital Video: An introduction to MPEG-2
A scheduling model for reduced CPU energy
FOCS '95 Proceedings of the 36th Annual Symposium on Foundations of Computer Science
Human perception of jitter and media synchronization
IEEE Journal on Selected Areas in Communications
Integrated power management for video streaming to mobile handheld devices
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Energy-Aware System Design for Wireless Multimedia
Proceedings of the conference on Design, automation and test in Europe - Volume 2
Maintaining video quality for a down-sampling decoder in low-power mobile devices
IMSA'06 Proceedings of the 24th IASTED international conference on Internet and multimedia systems and applications
Resource aware programming in the Pixie OS
Proceedings of the 6th ACM conference on Embedded network sensor systems
Adaptive Fair Resource Allocation for Energy and QoS Trade-Off Management
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Power and distortion optimization for pervasive video coding
IEEE Transactions on Circuits and Systems for Video Technology
Optimal power reduction based on DVFS algorithm for video decoders
Proceedings of the 2011 ACM Symposium on Research in Applied Computation
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Long battery life and high performance multimedia decoding are competing design goals for portable appliances. For a target level of QoS, the achievable battery life can be increased by dynamically adjusting the supply voltage throughout execution. In this paper, an efficient offline scheduling algorithm is proposed for preprocessing stored MPEG audio and video streams. It computes the order and voltage settings at which the appliance's CPU decodes the frames, reducing energy consumption without violating timing or buffering constraints. Our experimental results elucidate the trade-off between QoS and energy consumption. They demonstrate that the scheduler reduces CPU energy consumption by 19%, without any sacrifice of quality, and by nearly 50%, with only slightly reduced quality. The results also evaluate how the QoS/energy trade-off is affected by buffering and processor speed.