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, ...

Trees are the most spectacular plants in the garden. And since they grow so slowly, it is imperative that we treat them with utmost respect. That means pruning their limbs and branches correctly.

Transform your holiday decor with a charming cardboard Christmas tree. This step-by-step guide walks you through creating a festive masterpiece that adds a personal touch to your celebrations. Perfect ...