Equalization for Fiber-Optic Transmission Systems: Low-Complexity Iterative Implementations
Conference: Photonische Netze - 17. ITG-Fachtagung
05/12/2016 - 05/13/2016 at Leipzig, Deutschland
Proceedings: Photonische Netze
Pages: 8Language: englishTyp: PDF
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Authors:
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)
Abstract:
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.