A parallel algorithm for phase retrieval with dictionary learning
Jun 1, 2021ยท
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Tianyi Liu
Andreas M. Tillmann
Yang Yang
Yonina C. Eldar
Marius Pesavento
Abstract
We propose a new formulation for the joint phase retrieval and dictionary learning problem with a reduced number of regularization parameters to be tuned. A parallel algorithm based on the block successive convex approximation framework is developed for the proposed formulation. The performance of the algorithm is evaluated when applied to sparse channel estimation in a multi-antenna random access network. Simulation results on synthetic data show the efficiency of the proposed technique compared to the state-of-the-art method.
Type
Publication
IEEE International Conference on Acoustics, Speech and Signal Processing