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首页> 外文期刊>Journal of Low Power Electronics >An Ultra-High Speed and Low Complexity Quantum-Dot Cellular Automata Full Adder
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An Ultra-High Speed and Low Complexity Quantum-Dot Cellular Automata Full Adder

机译：超高速，低复杂度量子点元胞自动机全加法器

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Quantum-dot cellular automata represents a promising technology at Nano-scale for possible substitution of silicon based transistors. Considering its prominent features like high speed, low power consumption and high operating frequency, many researches have been carried out to propose diverse digital circuits exploiting this technology. In this paper, an ultra-high speed and well-optimized QCA one-bit full adder cell is presented. This design incorporates a new triple fan-out three-input majority gate and two 3-dimentional diagonally inverters to facilitate the signal transmission through the layers. In order to examine our design in a larger array of QCA circuits, different sizes of ripple carry adders (RCAs) up to 16-bit are designed. We have used QCADesigner as a popular simulation tool for evaluation of the circuit's functioning. With respect to the counterparts, our proposed n-bit adders show lower complexity and higher speed by 27% to 34% reduction in cell count in addition to 0.5 clock cycle improvement in comparison to the best previous results.
机译：量子点元胞自动机代表了一种有前途的技术，可以替代硅基晶体管。考虑到其突出的特点，如高速，低功耗和高工作频率，已经进行了许多研究以提出利用该技术的各种数字电路。本文提出了一种超高速且经过优化的QCA 1位全加法器单元。这种设计结合了新的三扇扇出三输入多数门和两个3维对角线反相器，以促进信号通过各层的传输。为了在更大范围的QCA电路中检查我们的设计，设计了高达16位的不同大小的纹波进位加法器（RCA）。我们已经使用QCADesigner作为流行的仿真工具来评估电路的功能。相对于同类产品，我们提出的n位加法器显示出更低的复杂度和更高的速度，与以前的最佳结果相比，除0.5个时钟周期的改善外，单元数减少了27％至34％。

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