Design and Implementation of Carry Look Ahead Adder In Qunatum Dot Cellular Automata

Authors

  • T. Srinivasa Padmaja  Assistant Professor, Department of ECE, SPMVV, Tirupati, Andhra Pradesh, India
  • C. M. Sri Priya  Assistant Professor, Department of ECE, SPMVV, Tirupati, Andhra Pradesh, India

Keywords:

Quantum dot Cellular Automata (QCA), Ripple Carry adder, Carry look ahead Adder

Abstract

In nano scale logic computing, dissipated heat and device area are the key areas of interest. Ideally zero heat dissipation can be achieved in reversible circuits by preserving information. This paper presents an original method and a practical design implementation of carry look ahead Adder.Among several nano-devices, QCA has elevated functionality in designing circuits at nano scale. A circuit for carry look ahead generator and its realization in QCA has been reported in this paper. To achieve the proposed design, majority gate based AND operation and OR operations have been used to design an EX-OR.These designs are verified and compared with a ripple carry adder. This comparison establishes the computing accuracy of the proposed designs. The design can function as a heart for faster parallel adder at nano scale level.

References

  1. H. Cho and E. E. Swartzlander, “Adder and multiplier design in quantum dot cellular automata,” Computers, IEEE Transactions on, vol. 58, no. 6, pp. 721–727, 2009.
  2. S.-H. Shin, J.-C. Jeon, and K.-Y. Yoo, “Wire-crossing technique on quantum-dot cellular automata,” in NGCIT2013, the 2nd International Conference on Next Generation Computer and Information Technology, vol. 27, 2013, pp. 52–57.
  3. R. Zhang, K. Walus, W. Wang, and G. A. Jullien, “Performance comparison of quantum-dot cellular automata adders,” in Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on. IEEE, 2005, pp. 2522–2526.
  4. I. Hanninen and J. Takala, “Robust adders based on quantum-dot cellular automata,” in Application-specific Systems, Architectures and Processors, 2007. ASAP. IEEE International Conf. on. IEEE, 2007, pp. 391–396.
  5. R. Devadoss, K. Paul, and M. Balakrishnan, “Coplanar qca crossovers, “Electronics letters, vol. 45, no. 24, pp. 1234–1235, 2009
  6. P. D. Tougaw and C. S. Lent, “Logical devices implemented using quantum cellular automata,” Journal of Applied physics, vol. 75, no. 3, pp. 1818–1825, 1994.
  7. T. J. Dysart and P. M. Kogge. ―Probabilistic analysis of a molecular quantum-dot cellular automata adder.‖ in Proc. 22nd IEEE Int. Symp. Defect Fault-Tolerance VLSI Syst., 2007, pp. 478–486.
  8. W. Wang, K. Walus, and G. A. Jullien, Quantum-dot cellular automata adders,‖ in Proc. IEEE 3rd Conf. Nanotechnol., vol. 1, 2003, pp. 461– 464.
  9. J.Timbler and C.S.Lent. ―Power gain and dissipation in quantum dot cellular automata‖ , Journal of Applied Physics, vol91, no 2, pp. 823- 831, 2002.
  10. A. Vetteth, K. Walus, V. S. Dimitrov, and G. A. Jullien, "Quatum-dot cellular automata carry-look-ahead adder and barrel shifter,” in Proc. IEEE Emerging Telecommunications Technologies Conference, Dallas, TX, Sept. 2002
  11. MoeinKianpour , Reza Sabbaghi-Nadooshan , A conventional design and sim- ulation for CLB implementation of an FPGA quantum-dot cellular automata, Microprocess. Microsyst. 38 (2014) 1046–1062
  12. V. Pudi, K. Sridharan, New Decomposition Theorems on Majority Logic for Low-Delay Adder Designs in Quantum Dot Cellular Automata, IEEE Transactions on Circuits and Systems II: Express Briefs, 59 (10) (2012) 678-682

IInternational Journal of Scientific Research in Computer Science, Engineering and Information Technology

Downloads

Published

2018-06-30

Issue

Volume 3, Issue 5, May-June-2018

Section

Research Articles

License

Copyright (c) IJSRCSEIT

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
T. Srinivasa Padmaja, C. M. Sri Priya, " Design and Implementation of Carry Look Ahead Adder In Qunatum Dot Cellular Automata" International Journal of Scientific Research in Computer Science, Engineering and Information Technology(IJSRCSEIT), ISSN : 2456-3307, Volume 3, Issue 5, pp.802-806, May-June-2018.