Abstract: This paper deals with the evolution of downlink codebook based multiple-input multiple-output (MIMO) within the third generation partnership project (3GPP) through release 15 to 17. There ...

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NAMI is the National Alliance on Mental Illness, the nation’s largest grassroots mental health organization dedicated to building better lives for the millions of Americans affected by mental illness.

Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

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