A Low-Power Implementation Scheme of Interpolation FIR Filters Using Distributed Arithmetic

Sangyun HWANG  Gunhee HAN  Sungho KANG  Jaeseok KIM  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.11   pp.2346-2350
Publication Date: 2003/11/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Integrated Electronics
Keyword: 
low-power interpolation FIR filter,  distributed arithmetic,  look-up table,  dynamic power consumption,  

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Summary: 
This paper presents a low-power implementation scheme of interpolation FIR filters using distributed arithmetic (DA). The key idea of the proposed scheme involves look-up tables generating only nonnegative values. Thus, the proposed scheme can minimize the dynamic power consumption of interpolation FIR filters using DA without additional hardware. When used for implementing a pulse shaping filter for CDMA2000 mobile stations, the proposed filter not only has almost the same hardware complexity as the conventional one; it also has approximately 43% reduced power consumption.