Dynamic Stable Relay Selection in Bluetooth Scatternet

Bluetooth is a progressive technology used for mobile ad-hoc network (MANET) for wireless nodes. Basic network in Bluetooth is called piconet, there could be multiple
piconets in Bluetooth that are connected with a common node
called relay. Relay plays an important role in the network,
because it uses different hopping pattern for different
piconets. Relay node has extra responsibility, which is
forward data from one piconet to other. The mobility and
degree of relay node affects the performance of the network.
The problem in ad-hoc network is the node stability and
reliability. As in Bluetooth all the communication is
synchronized so relay has to switch for communication into
different networks, most frequent movement of relay increase
control overhead in the network. The mechanism for selection
of relay should be simple and effective. A stable node should be selected as relay that increases the reliability and stability of the network. In this paper we consider the problem of designing an efficient mobility based relay selection and unnecessary relay role switched to slave. Our proposed scheme reduces the delay, message overhead, control
overhead, and increases the network stability and reliability. Performance results reveal that our proposed scheme significantly improves the performance of the network.