Analysis Of Hybrid Wdm/ocdm Networks With All-optical Code Converters

In this work, optical networks using the hybrid technology of wavelength division multiplexing and optical code division multiplexing (WDM/OCDM) with all-optical code converters are investigated. Expressions to show the code converter node performance including the effects of polarization mode dispersion (PMD) are derived. The main results show that the effects of PMD can decrease the code converter performance. It is also investigated a simple analytical formalism to solve the problem of optimal code converter placement. This formalism shows the network performance when the code converter are optimally/uniformly distributed in the network. © 2005 IEEE.172175Ram Murthy, C.S., Gurusamy, M., (2002) WDM Optical Networks: Concepts, Design, and Algorithms, , Prentice Hall: Upper Saddle RiverBanerjee, A., Generalized Multiprotocol Label Switching: An Overview of Routing and Management Enhancements (2001) IEEE Commun. Mag, pp. 144-150. , JanuarySotobayashi, H., Chujo, W., Kitayama, K., Transparent Virtual Optical Code/Wavelength Path Network (2002) IEEE J. Select Areas in Commun, 8 (3), pp. 699-704. , May/JuneKitayama, K., Murata, M., Versatile Optical Code-Based MPLS for Circuit, Burst and Packet Switchings (2003) J. Lightwave Technol, 21 (11), pp. 2573-2764. , NovemberMurata, M., Kitayama, K., A Perspective on Photonic Mutiprotocol Label Switching (2001) IEEE Network, 15 (4), pp. 56-63. , Jul-AugWen, Y.G., Zhang, Y., Chen, L.K., On Architecture and Limitation of Optical Multiprotocol Label Switching (MPLS) Networks Using Optical-Orthogonal-Code (OOC)/Wavelength Label (2002) Optical Fiber Technology, 8, pp. 43-70Kitayama, K., Code Division Multiplexing Lightwave Networks Based upon Optical Code Conversion (1998) IEEE J. Select Areas in Commun, 16 (7), pp. 1309-1319. , SeptemberSubramaniam, S., Azizoglu, M., Somani, A., On Optimal Converter Placement in Wavelength-Routed Networks (1999) IEEE/ACM Trans. Networking, 7 (5), pp. 754-766. , OctoberStrand, J., Chiu, A.L., Tkach, R., Issues For Routing In The Optical Layer (2001) IEEE Commun. Mag, pp. 81-87. , FebruaryChung, F., Salehi, J., Wei, V., Optical Orthogonal Codes: Design, Analysis, and Applications (1989) IEEE Trans on Information Theory, 35 (3), pp. 595-604. , MayWen, Y.G., Chen, L.K., Ho, K.P., Tong, F., All-Optical Code Converter Scheme for OCDM Routing Networks (2000) ECOC'2000, pp. 1088-1090. , paper P4.5, ppWen, Y.G., Chen, L.K., Ho, K.P., Tong, F., Fundamental Limitation and Optimization on Optical Code Conversion for WDM Packet Switching Networks (2001) Proc OFC'01, , paper TuVS-