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, ...

Path Guide is a completely plug-and-play indoor navigation service that does not require maps or any additional equipment. Using Path Guide, users can create routes by recording sensory data with ...

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Path of Exile 2 is hosting another free weekend with the release of the Last of the Druids. The update introduces a new character class and the ability to shapeshift into various primal beasts.

Abstract: A novel mechanism to generate nonrevisiting uniform coverage (NUC) paths on arbitrarily shaped object surfaces is presented in this work. Given a nonplanar surface, nonzero curvature makes ...