The evidence is solid but not definitive, as the conclusions rely on the absence of changes in spatial breadth and would benefit from clearer statistical justification and a more cautious ...

Abstract: Wireless systems have traditionally organized transmission, estimation, and feedback on a time–frequency grid. While effective at moderate array sizes, this paradigm becomes difficult to ...

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Abstract: We propose a novel factor model in the graph frequency domain for multivariate data residing on the vertices of a graph, referred to as a multivariate graph signal. By utilizing graph ...