3 papers
cs.IT2026
An Orthogonal Approximate Message Passing Framework for Multiuser Communications
Burak Çakmak, Hao Yan, Alexander Fengler +2
We solve the open problem of constructing a Bayes-optimal iterative signal recovery algorithm for linear-Gaussian \emph{multiuser} communication systems with random precoding at th…
cs.IT2025
Sparse Regression LDPC Codes for the Block-Fading Non-Coherent SIMO Channel
Alexander Fengler, Burak Çakmak, Giuseppe Caire
Sparse regression codes (SPARCs) are a class of codes that encode information through the superposition of columns of a randomised coding matrix. The combination with an outer non-…
cs.IT2024
Multi-Source Approximate Message Passing with Random Semi-Unitary Dictionaries
Burak Çakmak, Giuseppe Caire
Motivated by the recent interest in approximate message passing (AMP) for matrix-valued linear observations with superposition of \emph{multiple statistically asymmetric signal sou…