Dynamic voltage scaling on MPEG decoding

A number of research efforts have been devoted to reduce energy consumption of a processor without impacting the performance through the use of dynamic voltage scaling (DVS). The paper presents two DVS algorithms on MPEG decoding. One is DVS with delay and drop rate minimizing algorithm (DVS-DM) whe...

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Vydané v:Proceedings. Eighth International Conference on Parallel and Distributed Systems. ICPADS 2001 s. 633 - 640
Hlavní autori: Donghwan Son, Chansu Yu, Heung-Nam Kim
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 2001
Predmet:
CMOS technology
Decoding
Delay
Dynamic voltage scaling
Energy consumption
Energy efficiency
Mobile communication
Mobile computing
Motion pictures
Voltage control
ISBN:0769511538, 9780769511535
ISSN:1521-9097
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Shrnutí:A number of research efforts have been devoted to reduce energy consumption of a processor without impacting the performance through the use of dynamic voltage scaling (DVS). The paper presents two DVS algorithms on MPEG decoding. One is DVS with delay and drop rate minimizing algorithm (DVS-DM) where voltage is determined based on previous workload only. Another algorithm scales the supply voltage according to the predicted MPEG decoding time and previous workload (DVS with predicted decoding time or DVS-PD). Simulation results show that DVS-PD improves energy efficiency as much as 56% compared to the conventional shutdown algorithm. We also found that the amount of energy saving with DVS-PD is not affected by the fluctuation of the movie stream, but is related to the error rate of the predictor, which implies that if decoding time is predicted more accurately, the DVS algorithm can be more efficient.
ISBN:0769511538
9780769511535
ISSN:1521-9097
DOI:10.1109/ICPADS.2001.934877