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Power Efficient GALS Pipelined MAC Unit for FFT with Complex Numbers

机译:功率高效的GALS流水线MAC单位用于FFT,具有复数

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In this paper, we propose globally asynchronous locally synchronous (GALS) pipelined MAC using Baugh Wooley multiplier with complex numbers for FFT applications. The primary objective of the design is on low power implementation of MAC unit. Fully synchronous and GALS pipelined MAC unit are implemented using same FPGA and logic cells for fair comparison of results. Fully synchronous MAC unit dissipates 1.235 times more power as compared to GALS MAC unit. Power efficiency is achieved because of fine partitioning of global clock that reduces global clock rate.
机译:在本文中,我们提出了使用Baugh Wohey乘法器的全局异步局部同步(GALS)流水线MAC,具有复杂的FFT应用。设计的主要目标是MAC单元的低功耗实现。使用相同的FPGA和逻辑单元来实现完全同步和GALS流水线MAC单元,以便对结果进行公平比较。与GALS MAC单元相比,完全同步MAC单元耗散1.235倍的功率。由于全局时钟的精细分区来实现功率效率,这降低了全局时钟速率。

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