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In this paper, we consider the design of user grouping and scheduling for large-scale multiple-input multiple-output (MIMO) frequency-division-duplexing (FDD) systems. Based on a recently proposed two-stage precoding framework, we first propose an improved K-means user grouping scheme which allocates the users to different pre-beamforming groups using the second-order channel statistics, and then...
It is a massively ill-posed problem to separate a superimposed image into an object image of our interested object and an interference image of reflection. Previous studies relied on redundant information introduced by multiple exposure or multi-view configurations in the separation. Later some new methods proposed tailor-made constraints to remove reflection in specific conditions for a single superimposed...
Correlated failures pose a great challenge for the normal functioning of large wireless networks, because an initial local failure may trigger a global sequence of related failures. Given their potentially devastating impact, we characterize the spread of correlated failures in this paper, which lays the foundation for evaluating and improving the failure resilience of existing wireless networks....
Nowadays, facing the great changes of the enterprises in the world, the experts in the business and theory fields are seeking for more effective management style, thus substantially improving the organizational performance. Through the synthesis of literature, we find that the leaderspsila leadership style and leader-member exchange theory have a significant influence on improving organizational performance...
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