Equalization for Fiber-Optic Transmission Systems: Low-Complexity Iterative Implementations

Konferenz: Photonische Netze - 17. ITG-Fachtagung
12.05.2016 - 13.05.2016 in Leipzig, Deutschland

Tagungsband: ITG-Fb. 264: Photonische Netze

Seiten: 8Sprache: EnglischTyp: PDF

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Teich, Werner G.; Ibrahim, Mennatallah A.; Waeckerle, Florian; Fischer, Robert F. H. (Institute of Communications Engineering, Ulm University, Albert-Einstein-Allee 43, 89081 Ulm, Germany)

We consider a fiber-optic transmission system where linear distortions due to chromatic dispersion are dominant. For a direct detection receiver and linear modulation we derive a block transmission model, representing the digital transmission on a standard single-mode fiber. Electronic dispersion compensation on the receiver side is considered. The symbol error rate performance of linear equalization based on the zero-forcing criterion (ZF-LE) for varying length of the fiber is discussed. The Jacobi, Gauss-Seidel, and successive overrelaxationmethod are given as examples of low-complexity iterative implementations of the ZF-LE. Performance trade-offs between the direct method and the iterative implementations of a ZF-LE are enlightened.