Optimal VLSI Networks for Multidimensional Transforms

  • Authors:
  • H. M. Alnuweiri

  • Affiliations:
  • -

  • Venue:
  • IEEE Transactions on Parallel and Distributed Systems
  • Year:
  • 1994

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Abstract

This paper presents a new class of AT/sup 2/-optimal networks for computing themultidimensional discrete Fourier transform. Although optimal networks have beenproposed previously, the networks proposed in this paper are based on a newmethodology for mapping large K-shuffle networks, K/spl ges/2, onto smaller areanetworks that maintain the optimality of the DFT network. Such networks are used toperform the index-rotation operations needed by the multidimensional computation. Theresulting networks have simple regular layouts, and can be easily partitioned among several chips in order to reduce the number of input-output pins per chip.