Google has overhauled Firestore’s query engine, introducing "Pipeline operations" that enable complex server-side aggregations and array unnesting. The update shifts Firestore Enterprise toward an ...
Abstract: In this letter, a general design criterion is proposed for optimizing non-uniform three-dimensional (3D) arrays to enhance near-field capacity in extremely large-scale MIMO (XL-MIMO) ...
Abstract: In this paper, we propose a novel efficient approach for direction-of-arrival (DOA) using coprime arrays. Specifically, we derive the equivalent received signals of the sum-difference array ...
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