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, ...

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Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. David Kindness is a Certified Public Accountant (CPA) and an expert ...

Abstract: Developers often use learning resources such as API tutorials and Stack Overflow (SO) to learn how to use an unfamiliar API. An API tutorial can be divided into a number of consecutive units ...