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, ...
Abstract: Positioning with a help of navigational aids data are considered as main backup method is used in civil aviation. Currently, the ground network of navigational aids is minimized to guarantee ...
Computers have become an essential part of our everyday lives. Students are using computers daily through their need to attend online classes, play games, searching information, or do their school ...