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The High-Rate WPAN has been designed to provide a very high-speed short-range transmission capability with QoS provisions. However, the IEEE 802.15.3 standard does not specify the scheduling scheme. In this paper, we propose a priority management scheme for the IEEE 802.15.3 HR-WPAN, in which channel time allocations are scheduled, based on priority levels of data frames. We also analyze performance of management scheme by using an M/M/1 with priority queuing model. Our performance model has been validated via simulations. [ABSTRACT FROM AUTHOR]

In this paper, an energy saving mechanism is proposed for the IEEE 802.15.4 Low-Rate Personal Area Network (LR-PAN). In the current version of IEEE 802.15.4 standard, each node can enter the sleep mode only during the inactive portion of superframe. In our scheme, the coordinator dynamically determines duty cycle and adjusts the interval of sleep mode by varying BO (Beacon Order) based on the arrival rate of packets in the network observed. Analytical results show that our scheme with a proper adjustment of BO can increase the average sleep time and shorten the energy consumption. [ABSTRACT FROM AUTHOR]