Combinatorial optimization problems are often encountered in real-world applications, including logistics, scheduling and ...
Abstract: Spatial non-stationarity channel estimation for uplink massive MIMO systems can be formulated as a non-uniform block sparse signal recovery problem, in which the hierarchical sparsity of the ...
Abstract: Orthogonal time frequency space (OTFS) modulation, combined with massive multiple-input-multiple-output (MIMO) technology, offers robust performance in high-mobility environments and ...
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