14 papers
Probabilistic Temporal Shaping for Level-Constrained Signaling on Bandlimited Additive White Gaussian Noise Channels
Mahdi Mahvari, Gerhard Kramer, Shlomo Shamai
Level-constraints model one-bit-quantized signaling over real-alphabet continuous-time channels. New lower bounds on the capacity of bandlimited, additive white Gaussian noise chan…
Polar Coded Quantization for Distributed Source Coding
Muhammed Yusuf Sener, Gerhard Kramer, Shlomo Shamai +2
Scalar quantization and probabilistic shaping are applied to the distributed source coding of Gaussian sources, with mean-square error distortion. A coding scheme with a modulo int…
Generalized Schalkwijk-Kailath Coding for Autoregressive Gaussian Channels
Jun Su, Guangyue Han, Shlomo Shamai
We propose a Gaussian random coding scheme for AR() Gaussian channels that generalizes the celebrated Schalkwijk-Kailath (SK) coding scheme. This constructive coding scheme, ter…
Capacity Bounds on Doppler OFDM Channels
Pablo Orellana, Zheng Li, Jean-Marc Kelif +2
Low Earth orbit (LEO) satellite systems experience significant Doppler effects due to high mobility. While Doppler shifts can be largely compensated, residual frequency uncertainty…
High signal-to-noise ratio asymptotics of entropy-constrained Gaussian channel capacity
Adway Girish, Shlomo Shamai, Emre Telatar
We study the input-entropy-constrained Gaussian channel capacity problem in the asymptotic high signal-to-noise ratio (SNR) regime. We show that the capacity-achieving distribution…
SIM-Enabled Hybrid Digital-Wave Beamforming for Fronthaul-Constrained Cell-Free Massive MIMO Systems
Eunhyuk Park, Seok-Hwan Park, Osvaldo Simeone +2
As the dense deployment of access points (APs) in cell-free massive multiple-input multiple-output (CF-mMIMO) systems presents significant challenges, per-AP coverage can be expand…