Addition Aware Quantization for Low Complexity and High Precision Constant Multiplication
2010 (English)In: IEEE Signal Processing Letters, ISSN 1070-9908, Vol. 17, no 2, 173-176 p.Article in journal (Refereed) Published
Multiplication by constants can be efficiently realized using shifts, additions, and subtractions. In this work we consider how to select a fixed-point value for a real valued, rational, or floating-point coefficient to obtain a low-complexity realization. It is shown that the process, denoted addition aware quantization, often can determine coefficients that has as low complexity as the rounded value, but with a smaller approximation error by searching among coefficients with a longer wordlength.
Place, publisher, year, edition, pages
2010. Vol. 17, no 2, 173-176 p.
Addition; constant multiplication; quantization; subtraction
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-52893DOI: 10.1109/LSP.2009.2036384OAI: oai:DiVA.org:liu-52893DiVA: diva2:285764
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Oscar Gustafsson and Fahad Qureshi, Addition Aware Quantization for Low Complexity and High Precision Constant Multiplication, 2010, IEEE Signal Processing Letters, (17), 2, 173-176.