Achieving QoS for IEEE 802 . 16 in Mesh Mode

The MAC protocol of IEEE 802.16 standard specifies scheduling mechanisms about mesh mode in detail, while its channel resource allocation and reservation management protocols are open for further standardization. This paper proposes a slot allocation algorithm based on priority, which is to achieve QoS on MAC layer. We conducted a simulation to study packet delay, delay distribution, and throughput based on proposed algorithm. The simulation results show that our algorithm achieves QoS with low delay and low packet drop rate of high priority.