Abstract
Analytic expressions of the break-even cost ratios and total cost ratios for
an optical express network versus a client-only network are presented. Including
protection or restoration, only knowledge of the path hop-lengths is required
independent of network topology and routing strategies. The results show the
relative optical port and common equipment (CE) prices necessary for a total network
equipment cost reduction or, with given port and CE prices, the percentage of the
cost reduction.
© 2003 Optical Society of America
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