Optical GMPLS networks with code switch capable layer for sub-wavelength switching

TitleOptical GMPLS networks with code switch capable layer for sub-wavelength switching
Publication TypeConference Paper
Year of Publication2004
AuthorsKhattab, T., and H. Alnuweiri
Conference NameGlobal Telecommunications Conference, 2004. GLOBECOM '04. IEEE
Pagination1786 - 1792 Vol.3
Date Publishednov.
Keywordscode division multiple access, code switch capable layer, label mapping space, label switching layers, Manchester signaling, multiprotocol label switching, on-off keying, OOK, optical CDMA code switching layer, optical code enabled GMPLS, optical fibre communication, optical fibre networks, optical GMPLS networks, QoS capabilities, quality of service, robust clock recovery, sub-wavelength switching, telecommunication signalling, telecommunication switching, telecommunication traffic, traffic identification, wavelength division multiplexing, WDM

We propose a novel extension to the label mapping space in GMPLS networks by exploiting further physical layer properties. The proposed extension, OC-GMPLS (optical code enabled GMPLS), is a modified version of the standard GMPLS. OC-GMPLS relies on adding an optical CDMA code switching layer called code switch capable (CSC) layer to the existing label mapping layers. OC-GMPLS provides a larger label mapping space and enhances the QoS capabilities for optical networks through increasing the granularity of traffic identification. In our extension, we use Manchester signaling to allow for more robust clock recovery while providing enhanced performance over conventional on-off keying (OOK) schemes. We also provide a reference architecture for the label switching layers in our OC-GMPLS architecture capable of performing labelling through optical CDMA. We analyze the performance of the proposed scheme and show that our proposal significantly enhances the overall network performance.


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