Low Power Approach for Fir Filter Using Modified Booth Multiprecision Multiplier
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 5
Abstract
This paper presents an efficient approach to the design of low power reconfigurable finite impulse response (FIR) filter. The approach is well suited when the filter order is fixed and not changed for particular applications, and efficient trade-off between power savings and filter performance can be made using the proposed architecture. Generally, FIR filter exhibits more computational power consumption because of the multiplier unit. The proposed FIR filter dynamically changes the precision of multiplication with respect to the information available in the input data using Amplitude Detection (AD) block. Modified Booth Multi-Precision (MBMP) Multiplier is designed to accommodate low power and multiprecision operation. Also, reducing the computational complexity of multiplier unit tend to reduce the total power consumption of FIR filter. Simulation results show that the proposed approach achieves significant power savings without seriously compromising the filter performance.
Authors and Affiliations
Gowridevi B, Swamynathan S. M, Gangadevi B
Keywords
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