Title: Power-Efficient and Cost-Effective 2-D Symmetry Filter Architectures
Authors: Chen, Pei-Yu
Van, Lan-Da
Khoo, I-Hung
Reddy, Hari C.
Lin, Chin-Teng
Department of Computer Science
Keywords: Cost effective;multimode;power efficient;symmetry filter;2-D filter
Issue Date: 1-Jan-2011
Abstract: This paper presents two-dimensional (2-D) VLSI digital filter structures possessing various symmetries in the filter magnitude response. For this purpose, four Type-1 and four Type-2 power-efficient and cost-effective 2-D magnitude symmetry filter architectures possessing diagonal, fourfold rotational, quadrantal, and octagonal symmetries with reduced number of multipliers and one power-efficient and cost-effective multimode 2-D symmetry filter are given. By combining the identities of the four Type-1 symmetry filter structures, the proposed multimode 2-D symmetry filter is capable of providing four different operation modes: diagonal symmetry mode (DSM), fourfold rotational symmetry mode (FRSM), quadrantal symmetry mode (QSM), and octagonal symmetry mode (OSM). The proposed diagonal, fourfold rotational, quadrantal, and octagonal symmetry filter structures can attain power savings of 16.77%, 36.30%, 22.90%, and 37.73% with respect to that of the conventional 2-D filter design without symmetry. On the other hand, the proposed DSM, FRSM, QSM, and OSM modes can reduce power consumption by 11.01%, 31.42%, 17.53%, and 35.26% compared with that of the conventional 2-D filter design. The proposed multimode filter can result in a 63.25% area reduction compared with the sum of the areas of the four individual Type-1 symmetry filter structures.
URI: http://dx.doi.org/10.1109/TCSI.2010.2055274
ISSN: 1549-8328
DOI: 10.1109/TCSI.2010.2055274
Volume: 58
Issue: 1
Begin Page: 112
End Page: 125
Appears in Collections:Articles

Files in This Item:

  1. 000288244600010.pdf