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Photonic Network Communications

, Volume 23, Issue 3, pp 285–299 | Cite as

FWM aware evolutionary programming algorithm for transparent optical networks

  • Urmila Bhanja
  • Sudipta Mahapatra
  • Rajarshi Roy
Article

Abstract

This paper proposes and evaluates a four-wave mixing (FWM) aware evolutionary programming algorithm for dynamically setting up lightpaths in an optical wavelength division multiplexed network (WDM network). The proposed algorithm also considers the effect of amplified spontaneous emission noise (ASE noise) on a lightpath during propagation of the optical signal from any source to the intended destination. As crosstalk due to FWM and ASE noise are two transmission impairments that degrade the quality of optical signal even at low to medium data rates, it is mandatory for an algorithm for dynamic routing and wavelength assignment in a WDM network to consider the effect of these two impairments on the lightpath to be established. The distinguishing feature of the proposed algorithm is that it is based on an initial population of a single individual and uses a fitness function that is expressed in terms of the number of hops, path cost, variance contributions due to FWM crosstalk, amplifier noise, and different beat noises at the receiver. The performance of a newly introduced FWM aware priority-based wavelength assignment technique is compared with few of the existing wavelength assignment techniques in the present work.

Keywords

Evolutionary programming algorithm DRWA algorithm Nonlinear impairments Four-wave mixing ASE noise FWM aware priority-based wavelength assignment techniques 

Abbreviations

WDM

Wavelength division multiplexing

QoT

Quality of transmission

RWA

Routing and wavelength assignment

ASE

Amplified spontaneous emission

DWDM

Dense wavelength division multiplexing

SPM

Self-phase modulation

FWM

Four-wave mixing

ISI

Inter-symbol interference

CD

Chromatic dispersion

PMD

Polarized mode dispersion

FC

Filter concatenation

BER

Bit error rate

XPM

Cross-phase modulation

DRWA

Dynamic routing and wavelength assignment

ACO

Ant colony optimization

QoS

Quality of service

WRNs

Wavelength routing nodes

EDFA

Erbium doped fiber amplifier

NZDSF

Non-zero dispersion-shifted fiber

XCS

Cross-connect switch

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Urmila Bhanja
    • 1
  • Sudipta Mahapatra
    • 2
  • Rajarshi Roy
    • 2
  1. 1.Department of Electronics and Telecommunication EngineeringIndira Gandhi Institute of TechnologySarangIndia
  2. 2.Department of Electronics and Electrical Communication EngineeringIndian Institute of TechnologyKharagpurIndia

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