Paper Info
Title
Quality-Driven Proactive Computation Elimination for Power-Aware Multimedia Processing
Abstract
We present a novel, quality-driven, architectural-level approach that trades-off the output quality to enable power-aware processing of multimedia streams. The error tolerance of multimedia data is exploited to selectively eliminate computation while maintaining a specified output quality. We construct relaxed, synthesized power macro-models for power-hungry units to predict the cycle-accurate power consumption of the input stream on the fly. The macro-models, together with an effective quality model, are integrated into a programmable architecture that allows both power savings and quality to be dynamically tuned with the available battery-life. In a case study, power monitors are integrated with functional units of the IDCT module of a MPEG-2 decoder. Experiments indicate that, for a moderate power monitor energy overhead of 5%, power savings of 72% in the functional units can be achieved resulting in an increase in battery life by 1.95 x.
Year
DOI
Venue
2005
10.1109/DATE.2005.248
DATE
Keywords
Field
DocType
power-aware multimedia processing,functional unit,cycle-accurate power consumption,multimedia data,output quality,power monitor,synthesized power macro-models,power saving,quality-driven proactive computation elimination,effective quality model,specified output quality,moderate power monitor energy,decoding,degradation,coverage,wireless sensor network,computer architecture,set cover,mobile computing
Mobile computing,Set cover problem,Error tolerance,Computer science,Real-time computing,Decoding methods,Battery (electricity),Multimedia,Energy consumption,Wireless sensor network,Embedded system,Computation
Conference
ISSN
ISBN
Citations 
1530-1591
0-7695-2288-2
1
PageRank 
References 
Authors
0.36
15
4
Name
Order
Citations
PageRank
Shrirang M. Yardi1554.16
Michael S. Hsiao21467132.13
Thomas L. Martin320124.17
Dong S. Ha413314.49