Conference Paper

Performance evaluation and parameter optimization of wavelength division multiplexing networks with adaptive importance sampling techniques

Dept. of Electr. Eng., Twente Univ., Enschede
DOI: 10.1109/GLOCOM.1998.775948 Conference: Global Telecommunications Conference, 1998. GLOBECOM 98. The Bridge to Global Integration. IEEE, Volume: 4
Source: IEEE Xplore


In this paper new adaptive importance sampling techniques are
applied to the performance evaluation and parameter optimization of
wavelength division multiplexing (WDM) network impaired by crosstalk in
an optical cross-connect. Worst-case analysis is carried out including
all the beat noise terms originated by in-band crosstalk. Both input
signal hypotheses are considered. The accurate bit-error-rate estimates,
which are obtained in short run-times, indicate that the influence of
crosstalk is much lower than that predicted by previous analyses. This
finding has a strong impact on the design of WDM networks. Besides, a
method is used to optimize the detection threshold, which turns out to
improve the system performance significantly. The presented techniques
also allow us to determine the power penalty due to the introduction of
additional WDM channels

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