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, ...

Amazon's net sales reached $155.7 billion in Q1 2025; AWS contributed $29.3 billion. Amazon's historical acquisitions include Whole Foods and MGM. Amazon holds $101 billion in cash, aiding its ability ...

Keep your Amazon gift purchases a secret with Amazon Family. Whether you’re shopping for the holidays, a special occasion, ordering a birthday present, or treating yourself to something you don’t want ...

As cloud workloads continue to grow in complexity and scale, organizations face a persistent challenge: how to simultaneously deliver faster performance, lower costs, and meet sustainability ...