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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