5 citations · 7 across the 6 of their papers we have counts for
6 papers
On Error Rate Approximations for FSO Systems with Weak Turbulence and Pointing Errors
Carmen Álvarez Roa, Yunus Can Gültekin, Kaiquan Wu +2
Atmospheric attenuation, atmospheric turbulence, geometric spread, and pointing errors, degrade the performance of free-space optical transmission. In the weak turbulence regime, t…
A New 5 bit/2D-symbol Modulation Format for Relative Intensity Noise-dominated IM-DD Systems
Felipe Villenas, Kaiquan Wu, Yunus Can Gültekin +2
We propose a novel 5-bit/2D-symbol modulation format based on PAM-6 optimized for IM-DD systems dominated by relative intensity noise. The proposed modulation scheme improves SNR b…
On Geometric Shaping for 400 Gbps IM-DD Links with Laser Intensity Noise
Felipe Villenas, Kaiquan Wu, Yunus Can Gültekin +2
We propose geometric shaping for IM-DD links dominated by relative intensity noise (RIN). For 400 Gbps links, our geometrically-shaped constellations result in error probability im…
A Simple BER Expression for FSO Systems with Weak Turbulence and Pointing Errors
C. Álvarez Roa, Y. C. Gültekin, K. Wu +2
We develop a simple approximation for the average BER for an FSO system impacted by weak turbulence and pointing errors. Numerical results show that the proposed expression accurat…
Kurtosis-limited Sphere Shaping for Nonlinear Interference Noise Reduction in Optical Channels
Yunus Can Gültekin, Alex Alvarado, Olga Vassilieva +4
Nonlinear interference (NLI) generated during the propagation of an optical waveform through the fiber depends on the fourth order standardized moment of the channel input distribu…
Comparison of Short Blocklength Sphere Shaping and Nonlinearity Compensation in WDM Systems
Abdelkerim Amari, Lutz Lampe, O. S. Sunish Kumar +2
In optical communication systems, short blocklength probabilistic enumerative sphere shaping (ESS) provides both linear shaping gain and nonlinear tolerance. In this work, we inves…