Title :
Low-power implementation of polyphase filters in Quadratic Residue Number system
Author :
Cardarilli, G.C. ; Del Re, A. ; Nannarelli, A. ; Re, M.
Author_Institution :
Dept. of Electr. Eng., Univ. of Rome "Tor Vergata", Italy
Abstract :
The aim of this work is the reduction of the power dissipated in digital filters, while maintaining the timing unchanged. A polyphase filter bank in the Quadratic Residue Number System (QRNS) has been implemented and then compared, in terms of performance, area, and power dissipation to the implementation of a polyphase filter bank in the traditional two´s complement system (TCS). The resulting implementations, designed to have the same clock rates, show that the QRNS filter is smaller and consumes less power than the TCS one.
Keywords :
digital filters; low-power electronics; residue number systems; clock rate; digital filters; low power implementation; polyphase filters; power consumption; power dissipation; quadratic residue number system; two´s complement system; Channel bank filters; Digital video broadcasting; Dynamic range; Energy consumption; Filter bank; Finite impulse response filter; Frequency; Power dissipation; Satellite broadcasting; Timing;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1329374
