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• W2980241036 abstract "Sparse support recovery arises in many applications in communications and signal processing. Existing methods tackle sparse support recovery problems for a given measurement matrix, and cannot flexibly exploit the properties of sparsity patterns for improving performance. In this letter, we propose a data-driven approach to jointly design the measurement matrix and support recovery method for complex sparse signals, using auto-encoder in deep learning. The proposed architecture includes two components, an auto-encoder and a hard thresholding module. The proposed auto-encoder successfully handles complex signals using standard auto-encoder for real numbers. The proposed approach can effectively exploit properties of sparsity patterns, and is especially useful when these underlying properties do not have analytic models. In addition, the proposed approach can achieve sparse support recovery with low computational complexity. Experiments are conducted on an application ex-ample, device activity detection in grant-free massive access for massive machine type communications (mMTC). Numerical results show that the proposed approach achieves significantly better performance with much less computation time than classic methods, in the presence of extra structures in sparsity patterns." @default.
• W2980241036 created "2019-10-18" @default.
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• W2980241036 date "2019-12-01" @default.
• W2980241036 modified "2023-10-03" @default.
• W2980241036 title "Joint Design of Measurement Matrix and Sparse Support Recovery Method via Deep Auto-Encoder" @default.
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• W2980241036 doi "https://doi.org/10.1109/lsp.2019.2945683" @default.
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