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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, ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Jiwon Ma is a fact checker and research analyst with a background in cybersecurity, ...

Jiwon Ma is a fact checker and research analyst with a background in cybersecurity, international security, technology, and privacy policies. Before joining Investopedia, she consulted for a global ...

If you want to safeguard your online privacy using a virtual private network (VPN), there are certain trade-offs you have to make, the most notable of which is a decrease in internet speed. In order ...