Noise reduction for low-power broadband filtering

Renfei Liu, Keshab K Parhi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Supply voltage overscaling (VOS) has been studied recently for the design of low power finite impulse response (FIR) filters, where estimation-based noise reduction schemes are used for reducing the computational noise. When broadband filters are concerned, which are widely used in the scenario of high speed communication such as frequency-division multiplexed (FDM) systems, existing noise reduction schemes fail due to the relatively low dependency among broadband filter output samples. In this paper, a novel noise reduction scheme is proposed for broadband filters, which is the first implementation-independent scheme that can effectively reduce the noise due to both voltage overscaling and environmental fluctuations. Simulation results show that the proposed scheme achieves 7-27 dB performance gain while achieving 10.33%-51.74% power saving.

Original languageEnglish (US)
Title of host publication2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Pages1012-1015
Number of pages4
DOIs
StatePublished - Oct 26 2009
Event2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei, Taiwan, Province of China
Duration: May 24 2009May 27 2009

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Other

Other2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Country/TerritoryTaiwan, Province of China
CityTaipei
Period5/24/095/27/09

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