Title :
2×2 buffered switch fabrics for traffic routing, merging, and shaping in photonic cell networks
Author :
Hunter, David K. ; Cotter, David ; Ahmad, R. Badlishah ; Cornwell, W. David ; Gilfedder, Tim H. ; Legg, Peter J. ; Andonovic, Ivan
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
fDate :
1/1/1997 12:00:00 AM
Abstract :
An approach to optical packet switching is discussed, which uses small, simplified optical elements for traffic routing, merging, and shaping. The elements are constructed from 2×2 switches and optical delay lines, and may be implemented in a variety of technologies. They are designed for use with deflection routing, and even when using only six switches in a module, a deflection probability of 2.8×10-7 is possible with a load of 0.8. The modules may also be used as 2×1 mergers where a deflection probability of 10-12 is possible with six switches and a total load of 0.8. The BER performance of the modules is simulated with respect to crosstalk, with even relatively poor switch devices of -18.5 dB isolation yielding a power penalty of less than 1 dB. A networking strategy radically different from today´s is discussed, driven by the need to reduce hardware, software and operating costs
Keywords :
merging; optical delay lines; optical fibre networks; packet switching; photonic switching systems; probability; telecommunication network routing; telecommunication traffic; 2×2 buffered switch fabrics; 2×2 switches; BER performance; crosstalk; deflection probability; deflection routing; networking strategy; operating costs; optical delay lines; optical fibre networks; optical packet switching; photonic cell networks; power penalty; relatively poor switch devices; telecommunication traffic; total load; traffic merging; traffic routing; traffic shaping; Bit error rate; Corporate acquisitions; Delay lines; Fabrics; Merging; Optical buffering; Optical crosstalk; Optical packet switching; Optical switches; Routing;
Journal_Title :
Lightwave Technology, Journal of
