Novel Multi-logic gates using Quantum Dot Cellular Automata with energy dissipation analysis

Quantum dot Cellular Automata (QCA) poses novel computing paradigm to design Nano electronic circuits with favorable proximity intended towards high speed, energy efficient and compact devices. Hence this emerges as a viable beyond CMOS (complementary metal oxide semiconductor) Technology. Many literatures are based on 3 input-1 output majority gate logic, which primarily focuses to reduce the number of cells in single individual logic gates utilized. In this work we are extending our proposed multi-logic gates with different configurations to produce multiple logic functions with the same inputs of individual logic gates and also performing energy dissipation analysis. These gates are very useful since this enables the design of efficient smaller circuits. Proposed multi-logic design consumes less area than that of individual gates. The design is simulated in QCA Designer 2.0 and found in accordance with the logic. An analysis to explore the power dissipated by multi-logic gates is carried out by QCA Designer-E. The area and power efficiency of these multi-logic gates are compared with the previous best designed individual gates. Superior results are obtained and reported here.