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, these ...

As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. Other ...

Often, this happens in real life when road construction goes through a ridge and exposes the rocks in a "roadcut." The images at the top of this tutorial are linked by a line on the geologic map from ...