LETTER
High Speed Comparator for the Moduli {2n, 2n-1, 2n+1}
Keywords:
Residue number systems (RNS),
comparator
2013 Volume 10 Issue 21 Pages 20130628
Details
2013 Volume 10 Issue 21 Pages 20130628
{2n, 2n-1, 2n+1} is one of the most commonly used moduli in residue number systems. In this express, we propose a novel comparator for the moduli {2n, 2n-1, 2n+1}. Based on the proposed architecture, we can design high speed comparator for the moduli {2n, 2n-1, 2n+1}, which is the fastest among all known comparators for the moduli {2n, 2n-1, 2n+1}. The performance of the proposed comparator is evaluated and compared with the earlier fast comparators for the moduli {2n, 2n-1, 2n+1}, based on a simple gate-count and gate-delay model. The proposed comparator can improve the state-of-art by 8% on the average in terms of area and 6% on the average in terms of performance delay.