# Active 3D Double-RIS-Aided Multi-User Communications: Two-Timescale-Based Separate Channel Estimation via Bayesian Learning

> Research article (IEEE Transactions on Communications, 2023) · cited 53× · AI/ML

**Wikidata**: [openalex:W4362683599](https://www.wikidata.org/wiki/openalex:W4362683599)  
**Source**: https://4ort.xyz/entity/active-3d-double-ris-aided-multi-user-communications-two-timescale-based-separate-channel-estimation-via-bayesian-learni