New Systolic Array Algorithms and VLSI Architectures for 1-D MDST

Author:

Chiper Doru Florin123ORCID,Cracan Arcadie1ORCID

Affiliation:

1. Faculty of Electronics, Telecommunications and Information Technology, “Gheorghe Asachi“ Technical University of Iasi, 700506 Iasi, Romania

2. Technical Sciences Academy of Romania—ASTR, 030167 Bucharest, Romania

3. Academy of Romanian Scientists—AOSR, 030167 Bucharest, Romania

Abstract

In this paper, we present two systolic array algorithms for efficient Very-Large-Scale Integration (VLSI) implementations of the 1-D Modified Discrete Sine Transform (MDST) using the systolic array architectural paradigm. The new algorithms decompose the computation of the MDST into modular and regular computational structures called pseudo-circular correlation and pseudo-cycle convolution. The two computational structures for pseudo-circular correlation and pseudo-cycle convolution both have the same form. This feature can be exploited to significantly reduce the hardware complexity since the two computational structures can be computed on the same linear systolic array. Moreover, the second algorithm can be used to further reduce the hardware complexity by replacing the general multipliers from the first one with multipliers with a constant that have a significantly reduced complexity. The resulting VLSI architectures have all the advantages of a cycle convolution and circular correlation based systolic implementations, such as high-speed using concurrency, an efficient use of the VLSI technology due to its local and regular interconnection topology, and low I/O cost. Moreover, in both architectures, a cost-effective application of an obfuscation technique can be achieved with low overheads.

Funder

Romanian Ministry of Education and Research, CNCS

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry

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