We evaluate the performance of direct-detection 25 Gb/s Passive Optical Networks (PON) with adaptive equalization at the receiver side, comparing three transmitter schemes: two including digital signal processing (DSP), namely square-root raised-cosine pulse shaping and pre-emphasis, and the third one without any DSP pre-compensation. We show that DSP at transmitter side can provide a performance advantage only under strong bandwidth limitations and when considering feed-forward equalization (FFE) at the receiver. When including decision-feedback equalization (DFE), the use of pre-compensation at transmitter does not provide any advantage under linear transmission.

Direct-detection 25 Gb/s PON: PROs and CONs of digital signal processing at the transmitter side / Torres Ferrera, P.; Tipan, M.; Gaudino, R.; Cardenas, D.; Arevalo, G. V.. - ELETTRONICO. - 2020-:(2020), pp. 1-4. ((Intervento presentato al convegno 22nd International Conference on Transparent Optical Networks, ICTON 2020 tenutosi a ita nel 2020 [10.1109/ICTON51198.2020.9203535].

Direct-detection 25 Gb/s PON: PROs and CONs of digital signal processing at the transmitter side

Torres Ferrera P.;Gaudino R.;
2020

Abstract

We evaluate the performance of direct-detection 25 Gb/s Passive Optical Networks (PON) with adaptive equalization at the receiver side, comparing three transmitter schemes: two including digital signal processing (DSP), namely square-root raised-cosine pulse shaping and pre-emphasis, and the third one without any DSP pre-compensation. We show that DSP at transmitter side can provide a performance advantage only under strong bandwidth limitations and when considering feed-forward equalization (FFE) at the receiver. When including decision-feedback equalization (DFE), the use of pre-compensation at transmitter does not provide any advantage under linear transmission.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2859720