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A VLSI implementation of logarithmic and exponential functions using a novel parabolic synthesis methodology compared to the CORDIC algorithm

Pouyan, Peyman; Hertz, Erik LU and Nilsson, Peter LU (2011) European Conference on Circuit Theory and Design (ECCTD 2011)
Abstract
High performance implementations of unary functions are important in many applications e.g. in the wireless communication area. This paper shows the development and VLSI implementation of unary functions like the logarithmic and exponential function, by using a novel approximation methodology based on parabolic synthesis, which is compared to the well known CORDIC algorithm. Both designs are synthesized and implemented on an FPGA and as an ASIC. The results of such implementations are compared with metrics such as performance and area. The performance in the parabolic architecture is shown to exceed the CORDIC architecture by a factor 4.2, in a 65 nm Standard-VT ASIC implementation.
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author
organization
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type
Contribution to conference
publication status
published
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conference name
European Conference on Circuit Theory and Design (ECCTD 2011)
external identifiers
  • Scopus:80155205523
language
English
LU publication?
yes
id
c71bb6e2-2991-47c5-9cba-46ad17876318 (old id 2027654)
date added to LUP
2011-08-17 13:41:44
date last changed
2016-10-13 04:54:38
@misc{c71bb6e2-2991-47c5-9cba-46ad17876318,
  abstract     = {High performance implementations of unary functions are important in many applications e.g. in the wireless communication area. This paper shows the development and VLSI implementation of unary functions like the logarithmic and exponential function, by using a novel approximation methodology based on parabolic synthesis, which is compared to the well known CORDIC algorithm. Both designs are synthesized and implemented on an FPGA and as an ASIC. The results of such implementations are compared with metrics such as performance and area. The performance in the parabolic architecture is shown to exceed the CORDIC architecture by a factor 4.2, in a 65 nm Standard-VT ASIC implementation.},
  author       = {Pouyan, Peyman and Hertz, Erik and Nilsson, Peter},
  language     = {eng},
  title        = {A VLSI implementation of logarithmic and exponential functions using a novel parabolic synthesis methodology compared to the CORDIC algorithm},
  year         = {2011},
}