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, ...

Some people usher in the new year with a champagne toast, others by dutifully eating black-eyed peas, and then there are those who celebrate by diving into ice-cold water. Taking the plunge into the ...

Sir Brian May is set to debut the previously unreleased Queen Christmas track Not for Sale (Polar Bear) during a special festive broadcast. The song, written by May and recorded during sessions for ...