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2000
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Arithmetic Coding for Low Power Embedded System Design

9 years 6 months ago
Arithmetic Coding for Low Power Embedded System Design
We present a novel algorithm that assigns codes to instructions during instruction code compression in order to minimize bus-related bit-toggling and thus reducing power consumption. The target application area is embedded systems, where power consumption is increasingly becoming a dominant design constraint. Our algorithm is based on a variant of quasi–arithmetic coding where coding allows for random access and fast table–based decoding. We take advantage of the approximations introduced to modify codes and reduce bit-toggling, while maintaining compression performance and decoding speed. We present the first work to explore the trade-offs between compression ratios and bus-related power consumption and show that high compression ratios do not necessarily result in the lowest power consumption. By using our method, bus-related power consumption has been reduced by as much as 35% without imposing any additional hardware costs.
Haris Lekatsas, Wayne Wolf, Jörg Henkel
Added 30 Jul 2010
Updated 30 Jul 2010
Type Conference
Year 2000
Where DCC
Authors Haris Lekatsas, Wayne Wolf, Jörg Henkel
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