Designing Nanotechnology Based QCA Full Adders

International Journal of Computer Trends and Technology (IJCTT)          
© 2017 by IJCTT Journal
Volume-49 Number-4
Year of Publication : 2017
Authors : Wani Shah Jahan


Wani Shah Jahan "Designing Nanotechnology Based QCA Full Adders". International Journal of Computer Trends and Technology (IJCTT) V49(4):206-212, July 2017. ISSN:2231-2803. Published by Seventh Sense Research Group.

Abstract -
Nanotechnology based QCA basic logic layouts work well while simulating on QCA Designer software. The design of half adders has been reported by various researchers and most of the circuit combinations produce excellent results on simulation. Although design of QCA full adders has been reported by a large number of researchers but the simulation results on most of the circuits fail to produce claimed outputs as such the carry forward work is becoming difficult. There are certain difficulties in producing desired simulation results while joining two half adders to design full adder. The main cause for the problem seems to be the mismatch of input data, when earlier stage data is combined with the forward stage. We have tried to study some full adder designs on the basis of simulation results to move forward with our own designs for the purpose. With analysis of few reported adders we have proposed two full adder circuit layout designs with analysis for efficient implementation and future improvements.

[1] Fulton T. A. and G. H. Dolan, Observation of Single Electron Charging Effects, Physical Review Letters, 59, 1987, 189
[2] C. S. Lent and P. D. Tougaw, W. Porod and G. H. Bernstein, Quantum Cellular Automata, Nanotechnology, Vol. 4, 1993, 49-57
[3] C. S. Lent and P. D. Tougaw, A Device Architecture for Quantum Dots, Proceedings of the IEEE, Vol. 85, No. 4, April 1997, 541-557Gregory L. Snider, Alexci O. Orlov, Vishwanath Joshi et. el., Quantum-Dot Cellular Automata: Introduction and Experimental Overview, IEEE-NANO, 2001
[4] Amlani I. et. el., Demonstration of a Functional Quantum-Dot Cellular Automata Cell, Journal of Vacuum Science and Technology B, 16, 1998, 3795
[5] Amlani I., Alexci O. Orlov et. el., Digital Logic Gates using Quantum-Dot Cellular Automata, Science, 284, 1999, 289-291
[6] Wani Shah Jahan, Peer Zahoor Ahmad, Peer M. A. and Khan K. A., Circuit Nanotechnology: QCA Adder Gate Layout Designs, IOSR Journal of Computer Engineering (IOSR-JCE), Vol. 16, Issue 2, (Mar-Apr) 2014, 70-78.
[7] Zhang R and Walus K and Wang W and Jullien GA , A method of majority logic reduction for Quantum Cellular Automata, (2004).
[8] Heumpil Cho and Earl E.swartzlander , Adder and Multiplier Design in Quantum dot Cellular Automata, IEEE transactions on computers vol.58 No.6, June 2009
[9] W. Wang, K. Walus, and G. Jullien, Quantum-dot Cellular Automata Adders, In Proceedings of the 2003 3rd IEEE Conference on Nanotechnology, pages 461–464, 2003.
[10] Sara Hashemi and Mohammad Tehrani and Keivan Navi, An Efficient Quantum-dot Cellular Automata Full Adder, Scientific Research Essays Vol.7(2) pp.177-189 , 16 January 2012
[11] Mostafa Rahimi Azghadi and o.kavehei and K.navi ,A Novel Design For Quantum-Dot Cellular Automata Cells and Full Adders , Journal of Applied Sciences, Vol. 7, No. 22, 2007.
[12] K.Navi et al, A New Quantum Dot Cellular Automata Full Adder, Microelectronics Journal, Vol.41, No. 12, pp. 820-826, 2010.
[13] Ismo Hanninan and Jarmo Takala , Robust Adders Based On Quantum dot Cellular Automata, Tampere Finland, 2007.
[14] Kodam Latha and M. Nanda Maharshi, Design of Adders using QCA, IJAET, Vol. 6 No. 4, September 2013, 1750-1759
[15] Kyosum Kim, Kaijie Wu and Ramesh Karri, Towards Designing Robust QCA Architectures in the Presence of Sneak Noise Paths, Design, Automation and Test in Europe Conference and Exhibition, IEEE, 2005

QCA; Tunneling; Microelectronics; Boolean Algebra; Electrostatic Noise; QCA Designer; Full Adder; Simulation Result; Single Layer Layout.