In a scenario where different radio technologiescooperate to provide access to the Internet and advanced wirelessservices to mobile and nomadic users, Bluetooth is considered anenabling technology for the Personal Area Networking segment.To this aim, Bluetooth devices should be able to set-up a wirelessmulti-hop network with given topological characteristics and withlimited formation delay. In this work SHAPER, a distributedalgorithm for tree scatternet formation, is enhanced to workin a dynamic environment where devices enter and leave thePersonal Area Network and require a fast interconnection withan optimized topology. We define a procedure (called SHAPEROPT)that produces a meshed topology applying a DistributedScatternet Optimization Algorithm (DSOA) on the network builtby SHAPER. Nodes are shown to be able to easily join orleave the scatternet at any time, without compromising the longterm connectivity. Benefits brought by DSOA are shown byperformance analysis, while the delay for network set-up andreconfiguration in dynamic environments is shown to be withinacceptable bounds.
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