Title :
Fast parallel-prefix Ling-carry adders in QCA nanotechnology
Author :
Thanos, Anastasios ; Vergos, Haridimos T.
Author_Institution :
Comput. Eng. & Inf. Dept., Univ. of Patras, Patras, Greece
Abstract :
Ling-carry adders that use a Ladner-Fischer parallel-prefix algorithm for carry computation are explored for quantum-dot cellular automata (QCA) nanotechnology implementations. The results derived from drawn layouts, indicate that the proposed adders outperform in terms of delay all previously reported architectures explored for QCA implementations. The delay difference is becoming bigger in favor of the proposed adders as we move to larger wordlengths.
Keywords :
adders; carry logic; cellular automata; nanoelectronics; quantum dots; Ladner-Fischer parallel-prefix algorithm; QCA nanotechnology; carry computation; delay difference; fast parallel-prefix Ling-carry adders; quantum-dot cellular automata nanotechnology; wordlengths; Adders; Clocks; Delays; Layout; Logic gates; Nanotechnology; Wires;
Conference_Titel :
Electronics, Circuits, and Systems (ICECS), 2013 IEEE 20th International Conference on
Conference_Location :
Abu Dhabi
DOI :
10.1109/ICECS.2013.6815477
