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- W2897315508 abstract "Exploiting the inherent sparsity of millimeter-wave channels, the channel estimation problem is formulated as an atomic norm minimization that enhances sparsity in the continuous angles of arrival and departure. A semi-blind channel estimator is developed to track the time-varying channel dynamics, which is formulated as a non-convex problem. To solve the formulated channel estimation problem, we develop a computationally efficient conjugate gradient descent method based on non-convex factorization which restricts the search space to low-rank matrices. Simulation results are presented to illustrate the superior channel estimation performance of the proposed algorithms compared with the existing compressed-sensing-based estimators with finely quantized angle grids." @default.
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- W2897315508 date "2018-12-01" @default.
- W2897315508 modified "2023-09-25" @default.
- W2897315508 title "Semi-Blind Millimeter-Wave Channel Estimation Using Atomic Norm Minimization" @default.
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- W2897315508 doi "https://doi.org/10.1109/lcomm.2018.2875716" @default.
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