High-Speed and Reduced-Area Modular Adder Structures for RNS

  • Authors:
  • Ahmad A. Hiasat

  • Affiliations:
  • Princess Sumaya Univ. for Technology, Amman, Jordan

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 2002

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Abstract

A modular adder is a very instrumental arithmetic component in implementing online residue-based computations for many digital signal processing applications. It is also a basic component in realizing modular multipliers and residue to binary converters. Thus, the design of a high-speed and reduced-area modular adder is an important issue. In this paper, we are introducing a new modular adder design. It is based on utilizing concepts developed to realize binary-based adders. VLSI layout implementations and comparative analysis showed that the hardware requirements and the time delay of the new proposed structure are significantly, less than other reported ones. A new modulo (2n+1) adder is also presented. Compared with other similar ones, this specific modular adder requires less area and time delay.