An optimized two-level discrete wavelet implementation using residue number system

Husam Y. Alzaq*, B. Berk Ustundag

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Using discrete wavelet transform (DWT) in high-speed signal processing applications imposes a high degree of caution to hardware resource availability, latency and power consumption. In this paper, we investigated the design and implementation aspects of a multiplier-free two-level DWT by using residue number system (RNS). The proposed two-level takes the advantage of performing the multiplication operations using only the memory without involving special multiplier units, which preserves valuable resources for other critical tasks within the FPGA. The design was implemented and synthesized in ZYNQ ZC706 development kit, taking advantage of embedded block RAMs (BRAMs). The results of the overall experimentations showed that there is a considerable improve in the proposed two-level DWT design with regard to latency and peak signal-to-noise ratio (PSNR) precision value in the final output.

Original languageEnglish
Article number41
JournalEurasip Journal on Advances in Signal Processing
Issue number1
Publication statusPublished - 1 Dec 2018

Bibliographical note

Publisher Copyright:
© 2018, The Author(s).


  • Digital signal processing (DSP)
  • Discrete wavelet transform (DWT)
  • Field programmable gate array (FPGA)
  • Residue number system (RNS)


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