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A new control algorithm for Wide-Sense Nonblocking multiplane photonic banyan-type switching fabrics with zero crosstalk


[ 1 ] Katedra Sieci Telekomunikacyjnych i Komputerowych, Wydział Elektroniki i Telekomunikacji, Politechnika Poznańska | [ P ] employee

Year of publication


Published in

IEEE Journal on Selected Areas in Communications

Journal year: 2008 | Journal volume: vol. 26 | Journal number: nr 3

Article type

scientific article

Publication language


  • switching networks
  • control algorithms
  • path searching algorithms
  • wide-sense nonblocking
  • crosstalk

EN A new control algorithm for log 2 (N, 0, p) switching networks composed of 2 x 2 switching elements has been proposed recently. Under this algorithm, log 2 (N,0,p) switching networks with even number of stages are wide-sense nonblocking (WSNB) if p is the same as for the rearrangeable nonblocking (RNB) one. The considerred algorithm and WSNB conditions did not take into account crosstalk constraint, which is an important factor in photonic switching. This paper enhanced this algorithm to the case when crosstalk in the switching fabric is not allowed. WSNB conditions for this enhanced algorithm are also derived. It is shown, that the number of planes required is less than those derived earlier in other papers for WSNB multiplane banyan- type switching fabrics under crosstalk constraint. Under this algorithm, log 2 ( N,0,p) switching networks with odd number of stages and with zero crosstalk are WSNB if p is the same as for RNB one.

Pages (from - to)

54 - 64




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