Enforcing QoT via PCE in Multi Bit-Rate WSONs

Due to network upgrades, in centralized wavelength switched optical networks (WSONs), path computation element (PCE) has to guarantee the coexistence of different bit-rates in the same WSON. In particular, considering cross-phase modulation (XPM) is a challenging issue in multi bit-rate networks. In...

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Veröffentlicht in:	IEEE communications letters 2011-04, Vol.15 (4), p.452-454
Hauptverfasser:	Sambo, N, Cugini, F, Secondini, M, Iovanna, P, Bottari, G, Castoldi, P
Format:	Artikel
Sprache:	eng
Schlagworte:	100 Gbit/s Applied sciences Bit error rate Computation Exact sciences and technology Information, signal and communications theory Joining processes Modulation Modulation, demodulation Networks Optical communication Optical fiber communications Optical fiber networks Optical telecommunications Optical wavelength conversion PCE Phase modulation Signal and communications theory Switching and signalling Switching theory Systems, networks and services of telecommunications Telecommunication traffic Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Wavelengths WSON XPM
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Beschreibung
Zusammenfassung:	Due to network upgrades, in centralized wavelength switched optical networks (WSONs), path computation element (PCE) has to guarantee the coexistence of different bit-rates in the same WSON. In particular, considering cross-phase modulation (XPM) is a challenging issue in multi bit-rate networks. In this paper, we propose three schemes based on PCE to provision lightpaths in multi bit-rate (e.g., 10-40-100-Gb/s) WSONs.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2011.021111.102248