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