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Three provisioning schemes are proposed to effectively establish lightpath requests in multi bit-rate transparent networks affected by XPM. The scheme exploiting a novel GMPLS extension, by limiting the use of worst-case penalties, significantly improves the overall blocking performance.
XPM statistics in 100% pre-compensated WDM transmission depends on bit rates, transmission fibres and modulation formats. XPM in DPSK systems shows much less stochastic than that in OOK systems.
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