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: Extremely large-scale antenna array (ELAA) is viewed as one of the most promising technologies for future 6G communication systems. To fully exploit the performance of ELAA, accurate channel ...