This article tries to explain some of the design and technology tradeoffs in Bluetooth. The main considerations in the wireless link design are explored. This is advantageou in design as channel access, channel allocation, traffic control, interference minimization etc. In ad hoc networks, there is no difference between radio units.
Communication is peer to peer with no central controller.
Conventionally in ad hoc wireless networks, all devices sharing a common space will share the same channel, and will mutually coordinate in its sharing. In Bluetooth usage models however, even this is not sufficient as the number of Bluetooth devices in a given region of space may be very large and only a few of them may need to communicate among themselves, making mutual coordination among them very difficult and unlikely. There need not be any coordination among devices belonging to different networks within the scatternet. See Fig.1 Fig.1. Thus it is clear that the Bluetooth system due to its very nature of application will have to use scatternet kind of adhoc connectivity.