TY - GEN
T1 - Noise reduction for low-power broadband filtering
AU - Liu, Renfei
AU - Parhi, Keshab K.
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
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U2 - 10.1109/ISCAS.2009.5117930
DO - 10.1109/ISCAS.2009.5117930
M3 - Conference contribution
AN - SCOPUS:70350136282
SN - 9781424438280
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 1012
EP - 1015
BT - 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
T2 - 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Y2 - 24 May 2009 through 27 May 2009
ER -