Title: Data-path selection mechanism based on physical layer impairments for WDM network

Authors: Santos Kumar Das; Chakravarthi P. Kalyan; Sarat Kumar Patra

Addresses: Department of Electronics and Communications Engineering, National Institute of Technology, Rourkela 769008, India ' Department of Electronics and Communications Engineering, National Institute of Technology, Rourkela 769008, India ' Department of Electronics and Communications Engineering, National Institute of Technology, Rourkela 769008, India

Abstract: In optical networks, Physical Layer Impairments (PLIs) incurred by non-ideal optical transmission media accumulate along the optical path. The overall effect of PLIs determines the feasibility of the light-paths. It is important to understand the process that provide PLI information to the central manager and use this information efficiently to compute feasible routes and wavelengths. Based on the PLI impairments like fibre attenuation, Chromatic Dispersion (CD) and Polarisation Mode Dispersion (PMD), which reflects the Quality of service factors (Q-Factor), a centralised PLI-based routing algorithm is proposed for the selection of data-paths.

Keywords: link capacity; physical layer impairments; Q-factor; light path; power loss; data path selection; optical networks; wavelength division multiplexing; WDM networks; quality of service; QoS; routing algorithms.

DOI: 10.1504/IJSISE.2012.050317

International Journal of Signal and Imaging Systems Engineering, 2012 Vol.5 No.4, pp.239 - 245

Available online: 15 Nov 2012 *

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