Bluetooth scatternet models

A Bluetooth scatternet is an ad-hoc network consisting of two or more Bluetooth piconets that are interconnected using bridge nodes. This interconnection allows devices that are not directly connected, and which may not be within transmission range of each other, to communicate. The scatternet formation has not been formally defined in the Bluetooth special interest group (SIG) specifications. As a result, numerous and varied protocols have been proposed. While modeling ad-hoc networking in general is complex, the additional restrictions imposed by the Bluetooth specifications - such as low cost of the device, low power consumption, and network resilience while using piconets that have a maximum of seven active nodes - have created a significant challenge. Numerous models for constructing Bluetooth scatternets have been proposed, some of which may require modifications to the existing Bluetooth specifications.