Performance comparison of quantum-dot cellular automata adders

TitlePerformance comparison of quantum-dot cellular automata adders
Publication TypeConference Paper
Year of Publication2005
AuthorsZhang, R., K. Walus, W. Wang, and G. A. Jullien
Conference NameCircuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Pagination2522 - 2526 Vol. 3
Date Publishedmay.
Keywordsadders, carry logic, carry-look-ahead adder, carry-select adder, cellular automata, circuit latency, clocking zones, logic design, performance comparison, QCA adders, QCA bit-serial adder design, QCA computational units, QCA ripple-carry adder, quantum interference devices, quantum-dot cellular automata adders, semiconductor quantum dots
Abstract

QCA adders are fundamental building blocks of complex QCA computational units. In our analysis, we show that QCA ripple-carry adder and bit-serial adder designs actually outperform carry-look-ahead and carry-select adder designs. The QCA ripple-carry and bit-serial adders require fewer clocking zones, which have been found to be the main contributing factor toward overall circuit latency.

URLhttp://dx.doi.org/10.1109/ISCAS.2005.1465139
DOI10.1109/ISCAS.2005.1465139

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