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NTUA Contributions in D26

D26 Contribution: Physical Layer Impairment Aware Wavelength Routing Algorithms with Analytical Rules. NTUA Contributions in D26. NTUA Contributions in D26 4 Network-Level Simulation DT (Matthias)

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NTUA Contributions in D26

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  1. D26 Contribution: Physical Layer Impairment Aware Wavelength Routing Algorithms with Analytical Rules

  2. NTUA Contributions in D26 • NTUA Contributions in D26 • 4Network-Level Simulation DT (Matthias) • 4.1 Network Architecture and Planned Networks BT (Ben), DT (Matthias), PLABS (Simone), Siemens (Dominic) • 4.2 Description of the Simulation Architectures NTUA (Tanya), Siemens (Dominic) • 4.3 Simulation Results NTUA (Tanya), Siemens (Dominic)

  3. Network Design Procedure Network Resource Optimisation (Planning) Network Architecture and Traffic Matrix Dynamic Network Simulation: blocking performance Load balancing etc Physical Layer PLI: Physical Layer Impairments

  4. Dynamic Network Simulation SP/SWP QA QB

  5. Simulation Characteristics • Reference Network: Pan European • Physical Layer comprises fully dispersion compensated fibre links like explained in D19 • Physical Layer Modeling performed with analytical rules and on the basis of Q-factor (D19) • Each fibre link carries L wavelengths • Dynamic connection requests are assumed and traffic generation and inter-arrival times are uniformly distributed • No Traffic Matrix input considered for the time being • No Network Planning considerations are accounted for – at the time being wavelength number can only be fixed • No wavelength conversion, No regeneration, No protection

  6. Evaluation of Cost constraint PATH COST Shortest Widest Path Shortest Path Resource Utilisation Load Balancing

  7. SP versus SWP - PLI blind We expect that turning PLI awareness on will have little effect on the blocking performance of the SWP

  8. SP versus SWP - PLI aware • Load balancing ensures good physical performance for lightpaths • Also SWP algorithm finds alternative routes for impaired paths SWP SP

  9. The effect of the PLI awareness- The 2nd Constraint c) a) d) b)

  10. The effect of the 3rd Constraint

  11. Future Work • Next Step is to add the Traffic Matrix • Optimize the XPM Model • Update the Physical Layer Modeling with impairments: • Switching • SPM • Noise and Jitter from Wavelength Converters • SRS • PMD ??? • Multi-fiber/Multi-wavelength links

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