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, ...

CCSDS Mission Operations (MO) services are a set of standard end-to-end services based on a service-oriented architecture defined by the Consultative Committee for Space Data Systems (CCSDS) and it is ...

Microsoft is getting serious about the end of Exchange Web Services (EWS) and has announced that, starting in March 2026, it will begin blocking EWS access to mailboxes without license rights. EWS is ...