We provide models for evaluating the performance, cost and power consumption of different architectures suitable for a metropolitan area network (MAN). We then apply these models to compare today’s synchronous optical network/synchronous digital hierarchy metro rings with different alternatives envisaged for next-generation MAN: an Ethernet carrier grade ring, an optical hub-based architecture and an optical time-slotted wavelength division multiplexing (WDM) ring. Our results indicate that the optical architectures are likely to decrease power consumption by up to 75% when compared with present day MANs. Moreover, by allowing the capacity of each wavelength to be dynamically shared among all nodes, a transparent slotted WDM yields throughput performance that is practically equivalent to that of today’s electronic architectures, for equal capacity.
© 2013 OSA
Original Manuscript: June 21, 2012
Revised Manuscript: October 23, 2012
Manuscript Accepted: November 1, 2012
Published: December 21, 2012
Andrea Bianco, Thomas Bonald, Davide Cuda, and Raluca-Maria Indre, "Cost, Power Consumption and Performance Evaluation of Metro Networks," J. Opt. Commun. Netw. 5, 81-91 (2013)