A Novel Reversible BCD Adder For Nanotechnology Based Systems
Majid Haghparast,Keivan Navi +1 more
TLDR
It is shown that the proposed reversible BCD adder has lower hardware complexity and it is much better and optimized in terms of number of reversible gates and garbage outputs with compared to the existing counterparts.Abstract:
This paper proposes two reversible logic gates, HNFG and HNG. The first gate HNFG can be used as two Feynman Gates. It is suitable for a single copy of two bits with no garbage outputs. It can be used as "Copying Circuit" to increase fan-out because fan-out is not allowed in reversible circuits. The second gate HNG can implement all Boolean functions. It also can be used to design optimized adder architectures. This paper also proposes a novel reversible full adder. One of the prominent functionalities of the proposed HNG gate is that it can work singly as a reversible full adder unit. The proposed reversible full adder contains only one gate. We show that its hardware complexity is less than the existing reversible full adders. The proposed full adder is then applied to the design of a reversible 4-bit parallel adder. A reversible Binary Coded Decimal (BCD) adder circuit is also proposed. The proposed circuit can add two 4-bit binary variables and it transforms the result into the appropriate BCD number using efficient error correction modules. We show that the proposed reversible BCD adder has lower hardware complexity and it is much better and optimized in terms of number of reversible gates and garbage outputs with compared to the existing counterparts.read more
Citations
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On figures of merit in reversible and quantum logic designs
Majid Mohammadi,Mohammad Eshghi +1 more
TL;DR: It is proved that there is an optimum value for number of constant inputs to obtain a circuit with minimum quantum cost and it is shown that the garbage outputs can also be used to decrease the quantum cost of the circuit.
Design of a Novel Reversible Multiplier Circuit Using HNG Gate in Nanotechnology
TL;DR: A novel 4x4 bit reversible multiplier circuit using HNG gate can multiply two 4-bits binary numbers and can be generalized for NxN bit multiplication.
Journal ArticleDOI
Mach–Zehnder interferometer-based all-optical reversible logic gate
TL;DR: This paper proposes and design a novel scheme of Toffoli and Feynman gates in all-optical domain, described their principle of operations and used a theoretical model to assist this task, finally confirming through numerical simulations.
Journal ArticleDOI
Efficient approaches for designing reversible Binary Coded Decimal adders
TL;DR: It has been shown that the modified designs outperform the existing ones in terms of number of gates, number of garbage outputs, delay, and quantum cost.
Journal ArticleDOI
Two new low-power Full Adders based on majority-not gates
Keivan Navi,Mohammad Hossein Moaiyeri,Reza Faghih Mirzaee,Omid Hashemipour,Babak Mazloom Nezhad +4 more
TL;DR: Two novel low-power 1-bit Full Adder cells are proposed, based on majority-not gates, which are designed with new methods in each cell, and demonstrate improvement in terms of power consumption and power-delay product (PDP).
References
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