Abstract
Bluetooth is a low cost, low power, short-range radio technology used for wireless personal area networks (PANS). Bluetooth scatternet is a set of piconets interconnected via devices. Good interpiconet schedulings are necessary for devices to switch among piconets they participate in. This paper proposes an interpiconet scheduling algorithm named Traffic-Aware Scatternet Scheduling (TASS), for bridges in Bluetooth scatternets. According to masters' traffic information, TASS can adaptively switch the to high traffic load masters, and increase the usage of the bridge. In addition, TASS can reduce the number of failed unsniffs and the overhead of bridge switch wastes to further increase overall system performance. Simulation results show that TASS outperforms existing interpiconet scheduling in both network throughput and adaptability for various traffic loads.
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