Adaptive Intra-Piconet Scheduling for Supporting QoS on Scatternet Routes

Chorng-Horng Yang, Wu-Ping Ho

Bluetooth, Quality-of-Service, Scheduling, Scatternet.

Bluetooth is a wireless communication technology which can be used for cable replacement. This paper proposes an adaptive intra-piconet scheduling (-RMRR) for supporting Quality-of-Service (QoS) for scatternet routes. Firstly, two intra-piconet scheduling approaches were presented. However, these scheduling approaches do not fully support QoS on the scatternet route. The Round Robin (RR) approach is a fair scheduling but does not support QoS. The Exhausted Route-Member Round Robin (ERMRR) approach may support QoS on scatternet route but would suffer from the starvation problem. Thus, the proposed α-RMRR approach combines the RR and the ERMRR approaches into the -Route-Member Round Robin (α-RMRR), which can support QoS on route-member slaves and provides good fairness for the slaves. Moreover, the simulation study was conducted to compare the scheduling delay of the three approaches. Our simulation results show that the -RMRR is effective for supporting QoS with respect to the scheduling delay and good fairness on scatternet routes.

https://doi.org/10.31871/IJNTR.10.5.4