activity
20192026
most citedEnumerative Sphere Shaping for Rate Adaptation and Reach Increase in WDM Transmission Systems

13 citations · 24 across the 6 of their papers we have counts for

collaborators

6 papers

eess.SP2026

On LLR Calculations for Soft-decision Decoding in Next-generation IM-DD Systems with Laser RIN

Felipe Villenas, Yunus Can Gültekin, Alex Alvarado

We propose a low-complexity LLR approximation for SD decoding in IM-DD systems with relative intensity noise. Our approximation results in no BER performance penalty for a concaten…

eess.SP2026

Symbol Rate-Code Rate Trade-offs for IM/DD 200G/400G per Lane LPO Transceivers

José Núñez-Kasaneva, Yunus Can Gültekin, Stefanos Dris +3

We analyze the symbol rate-code rate trade-off in bandwidth-limited IM/DD systems targeting LPO transceivers, using PAM-4/6/8 as candidate modulation formats. We use the capacity o…

eess.SP2025

Beyond 200 Gb/s/lane: An Analytical Approach to Optimal Detection in Shaped IM-DD Optical Links with Relative Intensity Noise

Felipe Villenas, Kaiquan Wu, Yunus Can Gültekin +2

Next-generation intensity-modulation (IM) and direct-detection (DD) systems used in data centers are expected to operate at 400 Gb/s/lane and beyond. Such rates can be achieved by…

quant-ph2024

Information Reconciliation for Continuous-Variable Quantum Key Distribution with Using Short Blocklength Error Correction Codes: Proposal and Concerns

Kadir Gümüş, João dos Reis Frazão, Aaron Albores-Mejia +5

In this paper, we introduce a reconciliation protocol with a two-step error correction scheme that uses a short-blocklength, low-rate code and a long-blocklength, high-rate code. W…

eess.SP2019★ 13 cited

Enumerative Sphere Shaping for Rate Adaptation and Reach Increase in WDM Transmission Systems

Abdelkerim Amari, Sebastiaan Goossens, Yunus Can Gultekin +6

The performance of enumerative sphere shaping (ESS), constant composition distribution matching (CCDM), and uniform signalling are compared at the same forward error correction rat…

eess.SP2019★ 11 cited

Partial Enumerative Sphere Shaping

Yunus Can Gültekin, W. J. van Houtum, Arie Koppelaar +1

The dependency between the Gaussianity of the input distribution for the additive white Gaussian noise (AWGN) channel and the gap-to-capacity is discussed. We show that a set of pa…