基于自旋波的近似4：2压缩机
Spin Wave Based Approximate 4:2 Compressor
摘要：
在本文中，我们提出了一种节能的SW为基础的近似4：2压缩器，包括一个3输入和一个5输入的多数门。我们通过微磁模拟验证了我们的建议，并评估和比较其性能与最先进的SW，45 nm CMOS和Spin-CMOS同行之一。评估结果表明，建议的压缩机消耗的能量比其精确的SW设计版本少31.5%。此外，它具有与具有定向耦合器（DC）的近似压缩器相同的能耗和错误率，但其延迟低3倍。此外，它消耗的能量减少了14%，而平均错误率比近似45 nm CMOS对应物低17%。当与其他新兴技术相比，所提出的压缩器优于近似自旋CMOS为基础的压缩器的3个数量级的能源消耗，同时提供相同的错误率。最后，所提出的压缩器需要最小的芯片房地产测量的设备。
英文摘要：
In this paper, we propose an energy efficient SW based approximate 4:2 compressor comprising a 3-input and a 5-input Majority gate. We validate our proposal by means of micromagnetic simulations, and assess and compare its performance with one of the state-of-the-art SW, 45nm CMOS, and Spin-CMOS counterparts. The evaluation results indicate that the proposed compressor consumes 31.5\% less energy in comparison with its accurate SW design version. Furthermore, it has the same energy consumption and error rate as the approximate compressor with Directional Coupler (DC), but it exhibits 3x lower delay. In addition, it consumes 14% less energy, while having 17% lower average error rate than the approximate 45nm CMOS counterpart. When compared with the other emerging technologies, the proposed compressor outperforms approximate Spin-CMOS based compressor by 3 orders of magnitude in term of energy consumption while providing the same error rate. Finally, the proposed compressor requires the smallest chip real-estate measured in terms of devices.
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