Recursive construction of parallel distribution networks

  • Authors:
  • Shuo-Yen Robert Li;Xuesong Jonathan Tan

  • Affiliations:
  • Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong;Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong

  • Venue:
  • Journal of Parallel and Distributed Computing
  • Year:
  • 2007

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Abstract

A distributor is a time-multiplexed switch that sorts input signals to output ports in the round-robin fashion. We present an efficient construction of NxN distributors for all N in the form of parallel distributed-control networks, where the maximum size of a building block is the largest prime factor of N. The construction achieves the lowest known complexity for distributors of all sizes within the practical range. Meanwhile, we also offer an algorithm for the adaptation of a larger distributor into a smaller distributor. The adaptation is useful when the size N contains large prime factors. Rigorous algebraic formulation throughout the paper keeps the algorithmic construction transparent and affords many variations for the flexibility in implementation.