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Conference Paper


An Analysis of Bluetooth Scatternet Topologies


Bluetooth technology is intended primarily as a replacement of cables between electronic devices, as in Personal Area Networks (PANs), or for connecting the components of a computer system. In addition, larger topologies of so-called “scatternets” are targeting wider geographical area applications in factories, warehouses, shopping malls and various sensor network applications. Though some earlier work has looked at scatternet formation and scheduling issues, less attention has been given to optimizing scatternet topologies. Sizing a scatternet in terms of minimizing the number of piconets has been addressed. We consider in this paper topological design of scatternets, taking into consideration application traffic requirements. We study appropriate topologies, and size the network in terms of piconets. We develop a scatternet queuing model and use it to compare the delay-throughput characteristics of various topologies. We find that the best topology is application dependent. The analytical model is also used to determine the optimal point to operate a scatternet, i.e., the traffic load that saturates the network. We validate all our analytical results by simulation experiments, and find that all analytic results sufficiently match the simulation results.

Paper: PDF file of paper

Information & Date

ICC'03, Anchorage, AK, May. 2003


Rohit Kapoor
M. Y. “Medy” Sanadidi
Mario Gerla