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High-level modeling of switching activity with application to low-power DSP system synthesis
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
School of Electrical and Computer Engineering, Purdue University, West Lafayette.
School of Electrical and Computer Engineering, Purdue University, West Lafayette.
Luleå tekniska universitet.
1999 (English)In: Proceedings / 1999 IEEE International Conference on Acoustics, Speech, and Signal Processing: ICASSP 99 ; March 15 - 19, 1999, Civic Plaza, Hyatt Regency, Phoenix, Arizona, U.S.A., Piscataway, NJ: IEEE Communications Society, 1999, p. 1877-1880Conference paper, Published paper (Refereed)
Abstract [en]

We address the issue of high-level synthesis of low-power digital signal processing (DSP) systems by proposing switching activity models. In particular, we present a technology independent hierarchical scheme to compare relative power performance of two competing DSP systems. The basic building blocks considered for such system are a full-adder and a one-bit delay. Estimates of switching activity at the output of these building blocks is used to model the activity in different architectural primitives used for building DSP systems. This method is very fast and simple and simulations show accuracy within 4% of extensive bit-level simulations. Therefore, it can easily be integrated into current communications/DSP CAD tools for low-power applications. The models show that the choice of multiplier/multiplicand is important when using array multipliers in a data-path. If the input signal with smaller variance is chosen as the as the multiplicand, up to 20% savings in switching activity can be achieved. This observation is verified by analog simulation

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 1999. p. 1877-1880
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-30386DOI: 10.1109/ICASSP.1999.758289Local ID: 42ae6a40-3159-11dd-9729-000ea68e967bISBN: 0-7803-5041-3 (print)OAI: oai:DiVA.org:ltu-30386DiVA, id: diva2:1003613
Conference
IEEE International Conference on Acoustics, Speech, and Signal Processing : 15/03/1999 - 19/03/1999
Note
Godkänd; 1999; 20080603 (cira)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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Language
  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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