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HyDRA: Hybrid Dynamically Reconfigurable Architecture for DSP Applications

Abdulfattah M. OBEID, Syed Manzoor QASIM, Mohammed S. BENSALEH, Abdullah A. ALJUFFRI

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Summary :

Reconfigurable architectures have emerged as an optimal choice for the hardware realization of digital signal processing (DSP) algorithms. Reconfigurable architecture is either fine-grained or coarse-grained depending on the granularity of reconfiguration used. The flexibility offered by fine-grained devices such as field programmable gate array (FPGA) comes at a significant cost of huge routing area, power consumption and speed overheads. To overcome these issues, several coarse-grained reconfigurable architectures have been proposed. In this paper, a scalable and hybrid dynamically reconfigurable architecture, HyDRA, is proposed for efficient hardware realization of computation intensive DSP algorithms. The proposed architecture is greatly influenced by reported VLSI architectures of a variety of DSP algorithms. It is designed using parameterized VHDL model which allows experimenting with a variety of design features by simply modifying some constants. The proposed architecture with 8×8 processing element array is synthesized using UMC 0.25µm and LF 150nm CMOS technologies respectively. For quantitative evaluation, the architecture is also realized using Xilinx Virtex-7 FPGA. The area and timing results are presented to provide an estimate of each block of the architecture. DSP algorithms such as 32-tap finite impulse response (FIR) filters, 16-point radix-2 single path delay feedback (R2SDF) fast fourier transform (FFT) and R2SDF discrete cosine transform (DCT) are mapped and routed on the proposed architecture.

Publication
IEICE TRANSACTIONS on Electronics Vol.E99-C No.7 pp.866-877
Publication Date
2016/07/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E99.C.866
Type of Manuscript
PAPER
Category
Electronic Circuits

Authors

Abdulfattah M. OBEID
  King Abdulaziz City for Science and Technology (KACST)
Syed Manzoor QASIM
  King Abdulaziz City for Science and Technology (KACST)
Mohammed S. BENSALEH
  King Abdulaziz City for Science and Technology (KACST)
Abdullah A. ALJUFFRI
  King Abdulaziz City for Science and Technology (KACST)

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