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, ...

When you search in Bing.com under the Images tab, clicking on a thumbnail of one of the results will open a viewer pane that can be made full screen. It has forward and back arrows on the sides to ...

If Safari on your iPhone feels slow, crowded with banners, or filled with ads and sudden pop-ups, you are not alone. For me, it has reached the point where some sites were almost unreadable. After ...