BLE Scatternet Algorithm

[hberg]

Hello,

i'm currently researching the possibility of building scatternets with BLE. As the S130 softdevice supports multiple concurrent roles, it seems very possible (see here).

Are there any studies or tested topology algorithms that implement a scatternet with BLE? I can only find studies to classic bluetooth algorithms, but it seems they can't be applied fully (because of the S130 softdevice constraints).

OpenMesh should work for this, but i'm interested in scatternet-only solutions (for the moment).

I appreciate any help.

Thanks.

Kevin

[Sigurd]

Hi,

Building a BLE scatternet is fully possible. The SoftDevice S132 v4.0.2 support 20 connections, where you can freely configure each link/connection in any combination between Peripheral and Central.

[Sigurd]

Yes, but this constraint is only for the S130 SoftDevice(nRF51), but if you switch to a nRF52 device you can use the S132 Softdevice, where you can have e.g. 20 connections from central to peripheral if you want. You can connect a nRF52 device to e.g. 10 centrals and 10 peripherals if you want, the only limitation is that the number of connections(centrals+peripherals) is max 20.