A Bluetooth Scatternet Route Optimization Protocol

Abstract

Bluetooth wireless network technology is an emerging technology that allows Bluetooth devices to form a multi-hop ad hoc network known as a scatternet. Efficient routing in a scatternet has positive impacts on the performance of a network but the routing for inter-piconet communication has not been standardized yet. Many protocols have been proposed for route optimization but they still need more development. In a previous work, the route request packet was flooded throughout the network in order to find the main route. In this paper a Bluetooth Scatternet Route Optimization Protocol (SROP) is proposed. The SROP gets the information of all the possible paths through flooding. It floods the route request packets to the bridge and master devices and then chooses the appropriate path. After selecting the path, it then performs network restructuring to reduce the number of hop counts between the source and the destination. Simulation results reveal that the proposed protocol has achieved enhancement over the enhanced AODV protocol by increasing the ratio of the data packet delivery, reducing the delay time, minimizing the number of hop counts between the source and the destination. Consequently, it improves the whole network throughput.