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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Karl Childers, a mentally disabled man, has been in the custody of the state mental hospital since the age of 12 for killing his mother and her lover. Although thoroughly institutionalized, he is ...

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Kit Dillon Kit Dillon is a writer focused on bags and travel gear. He has worked for ...