Abstract | ||
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Throughput is a key performance metric for streaming FFT architectures. However, increasing spatial parallelism to improve throughput introduces complex routing, thus resulting in high power consumption. In this paper, we propose a high throughput energy efficient parallel FFT architecture based on Cooley-Tukey algorithm. Multiple pipeline FFT processors using time-multiplexing are utilized to perform FFT computation tasks in parallel. This design realizes high performance using task-level parallelism and avoids complex routing. Furthermore, to reduce the memory power consumption, a periodic memory activation (PMA) scheme is developed. By analyzing energy efficiency (defined as GOPS/Joule) asymptotically, we show that our design achieves a low energy efficiency complexity while satisfying a high-throughput requirement. For N-point FFT (64 ≤ N ≤ 4096), our proposed architecture achieves 50 ~ 63 GOPS/Joule, i.e., up to 78% of the Peak Energy Efficiency of FFT designs on FPGAs. Compared with a state-of-the-art design, our design improves the energy efficiency (defined as GOPS/Joule) by 17% to 26% with the same throughput. |
Year | DOI | Venue |
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2013 | 10.1109/HPEC.2013.6670343 | HPEC |
Keywords | DocType | ISSN |
power aware computing,periodic memory activation scheme,fast fourier transform,energy conservation,time-multiplexing,task-level parallelism,cooley-tukey algorithm,multiple pipeline fft processors,memory power consumption reduction,high throughput energy efficient parallel fft architecture,pma scheme,fpga,field programmable gate arrays,fast fourier transforms,pipeline processing | Conference | 2377-6943 |
ISBN | Citations | PageRank |
978-1-4799-1364-0 | 8 | 0.62 |
References | Authors | |
9 | 3 |
Name | Order | Citations | PageRank |
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Ren Chen | 1 | 107 | 10.23 |
Park, N. | 2 | 160 | 16.89 |
Viktor K. Prasanna | 3 | 7211 | 762.74 |