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, ...

Learn how to master the Mbappé-style Sombrero Flick in this easy step-by-step tutorial. Whether you're a beginner or looking to sharpen your street football skills, this flashy move will help you ...

Everyone engages in self-talk. But much depends on the way we do it. Scientists now find that the right words can free us from our fears and make us as wise about ourselves as we often are about ...