Wiener Filter for Short-Reach Fiber-Optic Links
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Abstract (arXiv)
Analytic expressions are derived for the Wiener filter (WF), also known as the linear minimum mean square error (LMMSE) estimator, for an intensity-modulation/direct-detection (IM/DD) short-haul fiber-optic communication system. The link is purely dispersive and the nonlinear square-law detector (SLD) operates at the thermal noise limit. The achievable rates of geometrically shaped PAM constellations are substantially increased by taking the SLD into account as compared to a WF that ignores the SLD.
Key facts. Cited by 2 papers in the map (data through 14 Oct 2026). First posted on arXiv 25 Apr 2020.
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2 papers.