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A Modified CSD Conversion for constant multiplication architecture for Air Filter

    Divya Bharathi E Deepa P

International Research Journal on Advanced Science Hub, 2019, Volume 1, Issue 1, Pages 57-61
10.47392/irjash.2019.09

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Abstract

This paper introduces an efficient hardware architecture for reconfigurable multiple constant multiplication block, based upon canonical signed digit (CSD)-based 4-bit vertical and 8-bit horizontal common sub expression elimination algorithm. The proposed architecture reduces the necessary number of full adder cells and the adder depths in addition to 4-bit specific sub-expressions (CS) in the vertical direction as well as 8-bit CSs in the horizontal direction, leading to reduces operation of adder blocks in comparison with 2-bit and 3-b binary CS elimination. In the first stage conversion of binary coefficients to canonical-signed digit reduce the adder path by lowering non-zero terms present in each coefficient. Further application of MODIFIED CSD conversion algorithm reduces the complexity in multiplicative block by identifying and eliminating the common sub expression leads to decrease in propagation delay with increase in performance of the system.
Keywords:
    canonical-signed digit Reconfigurable multiple constant multiplication block non-zero terms vertical and horizontal common sub expression (VHCSE) algorithm
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(2019). A Modified CSD Conversion for constant multiplication architecture for Air Filter. International Research Journal on Advanced Science Hub, 1(1), 57-61. doi: 10.47392/irjash.2019.09
Divya Bharathi E; Deepa P. "A Modified CSD Conversion for constant multiplication architecture for Air Filter". International Research Journal on Advanced Science Hub, 1, 1, 2019, 57-61. doi: 10.47392/irjash.2019.09
(2019). 'A Modified CSD Conversion for constant multiplication architecture for Air Filter', International Research Journal on Advanced Science Hub, 1(1), pp. 57-61. doi: 10.47392/irjash.2019.09
A Modified CSD Conversion for constant multiplication architecture for Air Filter. International Research Journal on Advanced Science Hub, 2019; 1(1): 57-61. doi: 10.47392/irjash.2019.09
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