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, ...

Skyve is platform/operating-system independent, works with all common database types, and is accessible through all common browsers and devices. By incorporating and integrating a range of other ...

Share your traditions, weigh in on a seasonal debate, write a story, reflect on the year behind you, or prepare for the one ahead. By Natalie Proulx and Katherine Schulten The Times Upshot reporter ...