Low-Complexity Soft-Decision Detection for Combating DFE Burst Errors in IM/DD Links

The deployment of non-binary pulse amplitude modulation (PAM) and soft decision (SD)-forward error correction (FEC) in future intensity-modulation (IM)/direct-detection (DD) links is inevitable. However, high-speed IM/DD links suffer from inter-symbol interference (ISI) due to bandwidth-limited hard...

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Veröffentlicht in:	Journal of lightwave technology 2024-03, Vol.42 (5), p.1395-1408
Hauptverfasser:	Wu, Kaiquan, Liga, Gabriele, Riani, Jamal, Alvarado, Alex
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Complexity Complexity theory Decision feedback equalizers decision-feedback equalizer Detection algorithms Direct detection Error correction Error detection Forward error correction High speed intensity modulation Likelihood ratio Links MAP algorithm Performance degradation Precoding Pulse amplitude modulation soft-decision decoding soft-output Viterbi algorithm Symbols Viterbi algorithm Viterbi algorithm detectors
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