376 citations · 722 across the 33 of their papers we have counts for
34 papers · 1 filter
Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems
Bin Chen, Yi Lei, Gabriele Liga +4
Shaping modulation formats in multi-dimensional (MD) space is an effective approach to harvest spectral efficiency gains in both the additive white Gaussian noise (AWGN) channel an…
Band-ESS: Streaming Enumerative Coding with Applications to Probabilistic Shaping
Yunus Can Gültekin, Frans M. J. Willems, Alex Alvarado
Probabilistic amplitude shaping (PAS) is on track to become the de facto coded modulation standard for communication systems aiming to operate close to channel capacity at high tra…
On Optimum Enumerative Sphere Shaping Blocklength at Different Symbol Rates for the Nonlinear Fiber Channel
Yunus Can Gültekin, Olga Vassilieva, Inwoong Kim +3
We show that a 0.9 dB SNR improvement can be obtained via short-blocklength enumerative sphere shaping for single-span transmission at 56 GBd. This gain vanishes for higher symbol…
Log-CCDM: Distribution Matching via Multiplication-free Arithmetic Coding
Yunus Can Gültekin, Frans M. J. Willems, Alex Alvarado
Recent years have seen renewed attention to arithmetic coding (AC). This is thanks to the use of AC for distribution matching (DM) to control the channel input distribution in prob…
Reducing the Error Floor of the Sign-Preserving Min-Sum LDPC Decoder via Message Weighting of Low-Degree Variable Nodes
Lotte Paulissen, Alex Alvarado, Kaiquan Wu +1
Some low-complexity LDPC decoders suffer from error floors. We apply iteration-dependent weights to the degree-3 variable nodes to solve this problem. When the 802.3ca EPON LDPC co…
Capacity Bounds for Optical WDM Channels with Peak Power Constraints
Viswanathan Ramachandran, Gabriele Liga, Astrid Barreiro +1
We investigate optical WDM transmission from the standpoint of an information-theoretic interference channel. Achievable rates that outperform treating interference as noise are pr…