Design of Efficient Mirror Adder in Quantum- Dot Cellular Automata

[摘要] Lower power consumption is an essential demand for portable multimedia system using digital signal processing algorithms and architectures. Quantum dot cellular automata (QCA) is a rising nano technology for the development of high performance ultra-dense low power digital circuits. QCA based several efficient binary and decimal arithmetic circuits are implemented, however important improvements are still possible. This paper demonstrate Mirror Adder circuit design in QCA. We present comparative study of mirror adder cells designed using conventional CMOS technique and mirror adder cells designed using quantum-dot cellular automata. QCA based mirror adders are better in terms of area by order of three.

[发布机构] VLSI Design and Embedded Systems Laboratory, School of Electronics, Devi Ahilya University, Indore, India^1

[关键词] Comparative studies;Decimal arithmetic;Digital signal processing algorithms;Full adders;Low-power digital circuits;Lower-power consumption;Quantum dot cellular automata;Quantum dot cellular automaton (QCA)