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, ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

This neo-Gothic cathedral may catch your eye with its enormous spires and you'll hear it referred to by many (similar) names, including Catedral da Sé, Catedral Metropolitana and Catedral da Sé de São ...

In “Wow, I feel old” news last week, Apple officially moved the original iPhone SE from the vintage to the obsolete list. That’s not just a nominal change; while vintage products can still access a ...