# Free-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspective

> Research article (IEEE Transactions on Communications, 2016) · cited 173× · AI/ML

**Wikidata**: [openalex:W972130887](https://www.wikidata.org/wiki/openalex:W972130887)  
**Source**: https://4ort.xyz/entity/free-space-optical-communications-capacity-bounds-approximations-and-a-new-sphere-packing-perspective