There’s an in-depth paper by Nicole Todtenberg and Rolf Kraemer on A Survey on Bluetooth Multi-hop Networks. The paper describes the basics of Bluetooth and Bluetooth Mesh.
![](https://www.beaconzone.co.uk/blog/wp-content/uploads/2019/06/bluetooth_mesh-1024x546.jpg)
The paper goes on to describe connected networks (scatternets) and connectionless networks including some complex topics such as scatternet formation, topology maintenance, optimisation, inter-piconet scheduling and packet forwarding.
Read about Beacons and the Bluetooth Mesh