| Summary: | 碩士 === 國立中正大學 === 資訊工程所 === 93 === In this paper, we propose an overlapping routing protocol using improved time-slot leasing in the Bluetooth WPANS. One or many slave-master-slave communications usually exist in a piconet of the Bluetooth network. A fatal communication bottleneck is incurred in the master node if many slave-master-slave communications are required at the same time. To alleviate the problem, an overlapping routing scheme is presented to allow slave node directly and simultaneously communicates with another slave node to replace with the original slave-master-slave communication works in a piconet. This overlapping routing scheme is based on the improved time-slot leasing scheme which modified from the original time-slot leasing scheme, while the original time-slot leasing scheme only provides the slave-to-slave communication capability. The key contribution of our improved time-slot leasing scheme additionally offers the overlapping communication capability. With the overlapping routing scheme, we developed an overlapping routing protocol in a Bluetooth WPANs. Finally, simulation results demonstrate that our developed routing protocol achieves the performance improvements on bandwidth utilization, transmission delay time, network congestion, and energy consumption.
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