An Efficient Design of DCT Approximation Based on Quantum Dot Cellular Automata (QCA) Technology

Table 4

Comparison of the proposed 8-bit PIPO with the previous works.

Circuit	Cell count	Area (μm^2)	Clock no. cycle	Crossover type
PIPO [21]	562	0.74	N.A	Not required
Proposed adder	407	0.52	35	Not required