  Power dissipation is known as the most notable limiting factor in all
nano-electronic design techniques including Quantum-dot Cellular Automata
(QCA). The familiar reversible computing approach is used as a reasonably
reliable solution, mitigating power dissipation. This study presents, a
comprehensive multi-objective method for designing R-Fs in emerging QCA
technology. The results are investigated in both logical and layout levels, in
detail. The results verify that the approach offered in this study has
advantage over the most efficient approaches available in the literature by
far. This comparison can be made on various parameters ranging from area,
complexity (cell amount), delay (clocking zones), and to even logical levels
including levels, Control inputs, the number of majority and NOT gates.
