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Design of optical packet switching networks

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5 Author(s)
Bianco, A. ; Dipt. di Elettronica, Politecnico di Torino, Italy ; Leonardi, E. ; Munafo, M. ; Neri, F.
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The paper considers optical packet switching networks with slotted operation. A general model of network nodes is introduced, based upon a nonblocking switching fabric, and re-circulating fiber delay lines to solve contentions. Given the current large bandwidth availability in optical networks, and the projected limitations of electronic switches, a new approach to network design is proposed, aiming at balancing wavelength and buffer allocation taking the number of switch ports as a constraint. Given the problem complexity, a heuristic solution is proposed, using simple queuing theory to model network links. The effectiveness of the new network dimensioning approach is demonstrated by running a simulation program on manually dimensioned topologies, and on topologies dimensioned using the proposed approach.

Published in:

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE  (Volume:3 )

Date of Conference:

17-21 Nov. 2002