Fiber-Optic Transmission with a Direct Detection Receiver: Iterative Implementation of Block Linear Equalization

Konferenz: Photonische Netze - 20. ITG-Fachtagung
08.05.2019 - 08.05.2019 in Leipzig, Deutschland

Tagungsband: ITG-Fb. 287: Photonische Netze

Seiten: 3Sprache: EnglischTyp: PDF

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Teich, Werner G.; Roy, Samhita; Fischer, Robert F. H. (Institute of Communications Engineering, Ulm University, Albert-Einstein-Allee 43, 89081 Ulm, Germany)

We consider electronic dispersion compensation for a fiber-optic transmission with a direct-detection receiver. The power efficiency of the block linear equalizer (BLE) based on the zero-forcing criterion is compared to the one based on the minimum mean-squared error (MMSE) criterion for M-ASK modulation with M = 2; 4; 8. Furthermore we enlighten performance trade-offs between the direct method and the iterative implementation, and show that the bit error ratio of an iterative BLE is lower-bounded by the one of the MMSE-BLE.