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, ...

The letter was signed by Itorho Ogheneovo Precious on behalf of NAOS-National. The National Association of Okpe Students (NAOS-National) has formally requested the immediate withdrawal of police ...

Secretary of Defense Pete Hegseth is planning a massive overhaul of the U.S. military’s command structure, which would downgrade headquarters in Europe, Asia and Africa, according to a new report.

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