Eduardo Costa,

Universidade Católica de Pelotas


This presentation is based on the research topics that professor
Eduardo Costa has been working in Brazil. The presentation has been
divided into three main topics which are entitled: Efficient
Dedicated Multiplication Blocks for 2s Complement Radix-2m Array
Multipliers; Fast Forward and Inverse Transforms for the H.264/AVC
Standard Using Hierarchical Adder Compressors; and Radix-2 Decimation
in Time (DIT) FFT Implementation Based on a Matrix-Multiple Constant
Multiplication Approach. In the first topic it is presented the
improvement of radix-2m binary array multiplier architecture that was
previously proposed in literature. For this purpose it will be
presented the use of a different scheme in order to optimize the
dedicated modules that perform the radix-16 and radix-256
multiplication. In the second topic, efficient adder compressors are
used in order to reduce the computational complexity of the Forward
and Inverse Transforms, where Compressor-Based architectures for
H.264/AVC transforms are developed. Finally, in the third topic, the
main goal is the implementation of fully-parallel radix-2 Decimation
in Time (DIT) Fast Fourier Transform – FFT, using the Matrix-Multiple
Constant Multiplication (M-MCM) at gate level.

Eduardo da Costa received the five-year engineering
degree in electrical engineering from the University of Pernambuco, Recife,
Brazil, in 1988, the M.Sc. degree in electrical engineering from the
Federal University of Paraiba, Campina Grande, Paraíba, Brazil, in 1991,
and the Ph.D. degree in computer science from the Federal University of Rio
Grande do Sul, Porto Alegre, Brazil, in 2002. Part of his doctoral work was
developed at the Instituto de Engenharia de Sistemas e Computadores
(INESC-ID), Lisbon, Portugal. He is currently a Professor with the
Departments of Electrical Engineering and Informatics, Catholic University
of Pelotas (UCPel), Pelotas, Brazil. He was a post-doc at UFRGS from
November 2009-April-2010. He is Master thesis Advisor in the Program in
Computer Science, UCPel. His research interests are VLSI architectures and
low-power design.

Date and local
Tuesday, February, 8 2011, 11h00, room 336 at INESC-ID, Lisbon.

More info

Seminars page of INESC-ID

Seminar organized by the
ALGOS group (


Date: 2011-Feb-08     Time: 11:00:00     Room: 336

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