Title :
Low-power implementation of a residue-to-weighted conversion unit for a 5-moduli RNS
Author :
Macii, Alberto ; Macii, Enrico
Author_Institution :
Dipt. di Autom. e Inf., Politecnico di Torino, Italy
Abstract :
Residue Number Systems (RNSs) are integer systems that enable parallel execution of arithmetic operations. Therefore, they find a wide range of applications in DSP-oriented designs. Fundamental for making RNSs usable in portable systems is the availability of power-efficient residue-to-weighted (R2W) converters. In this paper we propose an implementation of a unit of this kind, based on the precomputation optimization paradigm, that shows a 27% reduction in average pourer dissipation with respect to an existing R2W architecture specifically designed to handle a 5-moduli RNS. The area and delay penalties are kept under control in the re-designed component
Keywords :
CMOS logic circuits; carry logic; convertors; logic design; low-power electronics; residue number systems; 5-moduli RNS; DSP-oriented designs; arithmetic operations; integer systems; low-power implementation; parallel execution; portable systems; power-efficient converters; precomputation optimization paradigm; residue number systems; residue-to-weighted conversion unit; Circuits; Computer architecture; Control systems; Delay; Design optimization; Digital arithmetic; Digital signal processing; Energy management; Hardware; Power dissipation;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.813185
