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A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components
A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components (PDF)
A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components (Other)
A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components (Other)
A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components (Other)
A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components (Other)
A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components (Other)
We compare two approaches for high-level power estimation of DSP components implemented in FPGAs for different sets of data streams from real-world applications. The first model is a power macro-model based on the Hamming distance of input signals. The second model is an analytical high-level power model based on switching activity computation and knowledge about the component’s internal structure, which has been improved to also consider additional information on the signal distribution of two consecutive input vectors. The results show that the accuracy of both models is, in most cases, within 10% of the low-level power estimates given by the tool XPower when cycle-bycycle input signal distributions are taken into account, and that the difference between the model accuracies depends significantly on the nature of the signals. Additionally, the effort required for the characterization and construction of the models for different component structures is discussed in detail.
2008-12
A Comparison of Approaches for High-Level Power Estimation of LUT-based DSP Components
Telecommunications
Telecomunicaciones
International Conference on Reconfigurable Computing and FPGAs, RECONFIG'08
Cancún, México
IEEE
Carreras Vaquer
Carlos
Carlos Carreras Vaquer
Helms
Domenik
Domenik Helms
Jevtic
Ruzica
Ruzica Jevtic