Title :
A Structural Customization Approach for Low Power Embedded Systems Design
Author_Institution :
Sch. of Comput. Sci. & Eng., Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
Power consumption is a critical design issue in embedded systems. This paper presents a structural customization approach, targeting two basic design structures for a multiple choice function that is common in an embedded system: tree structure and chain structure. A theoretical comparison between these two structures is performed. We find that the chain structure has a lower area cost and offers more customization opportunities, for improving performance and power efficiency, than the tree structure. We then propose two algorithms to reduce power consumption of the chain design for different performance constraints. A case study on ALU (Arithmetic and Logic Unit) customization has been carried out, Our experiments show that up to 50 percent of ALU power consumption can be saved with our customization approach.
Keywords :
design for environment; digital arithmetic; embedded systems; network synthesis; power aware computing; tree data structures; arithmetic and logic unit customization; chain structure; low power embedded systems design; power consumption; structural customization approach; tree structure; Algorithm design and analysis; Clocks; Delay; Logic gates; Multiplexing; Power demand; Transistors; Application-Specific Design; Design Customization; Power Reduction;
Conference_Titel :
Green Computing and Communications (GreenCom), 2010 IEEE/ACM Int'l Conference on & Int'l Conference on Cyber, Physical and Social Computing (CPSCom)
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-9779-9
Electronic_ISBN :
978-0-7695-4331-4
DOI :
10.1109/GreenCom-CPSCom.2010.12
