A Comparison of Elastic and Mixed Line Rate Optical Slot Switching WDM Metro Rings

Author

Pointurier, Yvan ; Uscumlic, Bogdan ; Cerutti, I. ; Antona, Jean-Christophe

Author_Institution

Bell Labs., Alcatel-Lucent, Nozay, France

Volume

25

Issue

15

fYear

2013

fDate

Aug.1, 2013

Firstpage

1416

Lastpage

1419

Abstract

We propose optimal resource allocation techniques for two kinds of optical slot switching metro rings: 1) fixed mixed line rate (fMLR), where the rate of each transponder (TRX) is fixed and set at network planning time; and 2) elastic TRX, where the rate may adjust dynamically on a per-slot basis during network operation. We then numerically compare the cost (CAPEX or energy) of fMLR and elastic networks, and investigate the suitability of each of the two considered network technologies for several ring topologies, TRX cost models, and traffic distributions and loads.

Keywords

metropolitan area networks; numerical analysis; optical communication equipment; optical switches; resource allocation; switching networks; telecommunication network topology; telecommunication traffic; transponders; wavelength division multiplexing; CAPEX; TRX cost models; elastic TRX; elastic line rate optical slot switching WDM metro rings; fMLR; fixed mixed line rate; mixed line rate optical slot switching WDM metro rings; network operation; network planning time; network technologies; numerical analysis; optimal resource allocation; ring topologies; traffic distributions; traffic loads; transponder; Optical packet switching; network planning;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2266151

Filename

6523149