Research Article
An Architecture of 2-Dimensional 4-Dot 2-Electron QCA Full Adder and Subtractor with Energy Dissipation Study
Table 7
Comparison of dissipated power by the proposed and existing circuits.
| Design | Sum_bath | Avg_bath | Sum_clk | Avg_clk |
| Adders | layout in [22] | 3.52e-02 (Er: -3.08e-03) | 3.20e-03 (Er: -2.80e-04) | -1.39e-02 | -1.26e-03 | layout in [23] | 2.16e-02 (Er: -1.93e-03) | 1.97e-03 (Er: -1.75e-04) | 8.60e-03 | 7.82e-04 | layout in [28] | 3.00e-02 (Er: -2.87e-03) | 2.73e-03 (Er: -2.61e-04) | -7.85e-03 | -7.13e-04 | Proposed layout | 2.31e-02 (Er: -2.38e-03) | 2.10e-03 (Er: -2.16e-04) | 1.19e-02 | 1.08e-03 |
| Subtractors | layout in [25] | 7.46e-02 (Er: -7.27e-03) | 6.78e-03 (Er: -6.61e-04) | -2.12e-02 | -1.93e-03 | layout in [26] | 2.28e-02 (Er: -2.26e-03) | 2.07e-03 (Er: -2.05e-04) | 2.26e-02 | 2.06e-03 | layout in [29] | 4.91e-02 (Er: -3.80e-03) | 4.46e-03 (Er: -3.45e-04) | -3.25e-02 | -2.96e-03 | layout in [30] | 6.35e-03 (Er: -6.97e-04) | 5.77e-04 (Er: -6.33e-05) | 1.63e-02 | 1.48e-03 | Proposed layout | 2.30e-02 (Er: -2.37e-03) | 2.09e-03 (Er: -2.16e-04) | 7.65e-03 | 6.96e-04 |
|
|