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http://dx.doi.org/10.3745/KIPSTC.2003.10C.2.185

An Efficient Scheduling Scheme for Bluetooth Scatternets Based on the Sniff Mode  

Lee, Woo-Sin (광운대학교 대학원 컴퓨터공학과)
Lee, Hyuk-Joon (광운대학교 컴퓨터공학과)
Publication Information
The KIPS Transactions:PartC / v.10C, no.2, 2003 , pp. 185-190 More about this Journal
Abstract
Bluetooth communication is based on piconet, which is composed by one master and maximum seven slaves. Several piconets can be interconnected via an inter-piconet Bluetooth unit called a bridge unit to form a Bluetooth scatternet. This bridge node can make its presence in each piconet by switching. This switching must be carefully scheduled so that slot wastage and, hence, packet delays are minimized. In this paper, we introduce an efficient inter-piconet scheduling scheme based on sniff mode. This scheme tries to minimize the wastage of slots by having the bridge unit sniff with its peering masters with time limits and communicate with its slaves in remaining slots. The sniff time limits are determined adaptively based on the amount of traffic in each piconet. Simulation results show this scheme outperforms round-robin scheme based on sniff intervals of equal lengths.
Keywords
Bluetooth; Bluetooth Scatternet; Inter-piconet Scheduling; Sniff Mode;
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