Internet of Things for Architects

Bluetooth mesh topology

Bluetooth mesh uses the concept of a flood network. In a flood network, each incoming packet received by a node in the mesh is sent through every outgoing link, except the link to the parent of the message. Flooding has the advantage that if a packet can be delivered, it will be delivered (albeit probably many times via many routes). It will automatically find the shortest route (which can vary by signal quality and distance in a dynamic mesh). The algorithm is the simplest to implement as far as routing protocols are concerned. Additionally, it requires no central manager such as a Wi-Fi network based around a central router. For comparison, the alternate types of mesh routing include tree-based algorithms. With tree ...