Performance of Bluetooth scatternets under E-limited polling and walk-in bridge scheduling

In this paper we analyze the performance of Bluetooth scatternets with piconets interconnected with SS bridges. Masters do not maintain any specific schedules of meeting points with bridges; they simply poll the bridge in every cycle and exchange the data when bridge is present. Both ordinary slaves and bridges are polled using the E-limited scheme. We consider bursty traffic and model service times, access delay and bridge delay as the QoS parameters of the scatternet. Analytical and simulation results show that this scatternet/piconet scheduling approach offers good performance and excellent scalability.