Cost Functions for CAC/RWA in Dynamic Optical Networks under GVD, SPM and XPM

Ubiratan S. P. Filho, Moisés R. N. Ribeiro, Iguatemi E. Fonseca


The constraints of optical Quality of Service (QoS) in transparent optical networks are herein addressed through empirical cost functions. The joint effect of group velocity dispersion (GVD) and nonlinear effects Cross-Phase Modulation (XPM) and Self-Phase Modulation (SPM) are considered through extensive numerical simulation in single and multi-span systems. A representative cost function is then found to encompass the physical impairments of a given link utilization (i.e., launched power, wavelength grid, number of active channels, etc). Finally, this link-based approach is used to demonstrate the simplification of the algorithms for Connection Admission Control (CAC) integrated to the algorithm of Routing and Wavelength Assignment (RWA) in dynamic lightpath provisioning with end-to-end optical QoS guarantees.

Full Text:



R. Ramaswami, K.N. Sivarajan, Optical Networks: A practical Perspective, 2nd Edition, Morgan Kaufmann Publishers, Inc., San Francisco, California, U.S.A., 2002.

F. Cugini, N. Andriolli, L. Valcarenghi, and P. Castoldi, "A Novel Signaling Approach to Encompass Physical Impairments in GMPLS Networks``, in Proc. IEEE Globecom'04, Dec 2004.

I. E. Fonseca, "Uma abordagem para Aprovisionamento e Diferenciação de QoS Óptico na Presença de FWM em Redes Ópticas Transparentes``, Tese de Doutorado, FEEC/Unicamp, Abril 2005.

Y. Pointurier, M. B. Pearce, C. L. Brown, T. Deng e S. Subramaniam, "Fair QoS-Aware Adaptive Routing and Wavelength Assingment in All-optical Networks``, Proc. IEEE ICC'06, 2001.

B. Ramamurthy, D. Datta, H. Feng, J. P. Heritage, and B. Mukherjee, "Impact of transmission impairments on the teletraffic performance of wavelength-routed optical networks``, J. Ligthwave Technology, Vol. 17, pp.1713-1723, Oct 1999.

M. Ali, L. Tancevski, "Impact of Polarization-Mode Dispersion on the Design of Wavelength-Routed Networks``, Photonics Technology Letters, Vol. 14, pp. 720–722, May 2002.

I. E. Fonseca, M. R. N. Ribeiro, R. C. Almeida Jr., and H. Waldman, "Preserving Global Optical QoS in FWM Impaired Dynamic Networks", IEE Electronics Letters, Vol. 40, pp. 191-192, Feb 2004.

M.A.C. Lima, A.F.R. Araújo, A.C César, "Agregação Dinâmica de Tráfego em Redes Ópticas WDM Utilizando Algoritmo Genético", in Proc. MOMAG'04, Aug. 2004.

ITU-T Rec. G.652, "Characteristics of Single-Mode Optical Fiber Cable", Oct 2000.

G.P. Agrawal, Nonlinear Fiber Optics, 3rd ed., San Diego, N.Y., U.S.A.: Academic Press, 2001. pp. 389-412.

R. S. Luís and A. V. T. Cartaxo, "Analytical Characterization of SPM Impact on XPM-Induced Degradation in Dispersion-Compensated WDM Systems``, J. Ligthwave Technology, Vol. 23, pp.1503-1513, Mar 2005.

M. Freitas, L. de C. Calmon, R.T.R. Almeida, "Influência do Número de Canais e Espaçamento entre Canais na Atuação da Modulação Cruzada de Fase em Sistemas WDM``, XVIII Simpósio Brasileiro de Telecomunicações – SBrT 2000, Gramado-RS.


  • There are currently no refbacks.

© Copyright 2007-2016 JMOe Brazilian Microwave and Optoelectronics Society (SBMO) and Brazilian Society of Electromagnetism (SBMag)