Z. Lu, J. Hein, M. Stan, J. Lach and K. Skadron.
In Proc. of the 2002 Workshop on Self-healing, Adaptive, and Self-managed Systems (SHAMAN'02) , in conjunction with ICS 2002, June 2002, New York City.
Best student paper!

Abstract
This paper describes a formal feedback-control algorithm for dynamic voltage/frequency scaling (DVS) in a portable multimedia system to save power while maintaining a desired playback rate. Our algorithm is similar in complexity to the previously-proposed change-point detection algorithm but does a better job of maintaining stable throughput and is not dependent on the assumption of an exponential distribution of the frame decoding rate. For approximately the same energy savings as reported by the change-point detection algorithm, our controller is able to keep the average frame delay within 10% of the target more than 90% of the time.