Quality of service in mesh mode IEEE 802.16 networks

IEEE 802.16 standard supports two topologies: point-to-multipoint (PMP) and Mesh. In this paper, a QoS mechanism for the Mesh mode of IEEE 802.16 and a BS scheduler for the Mesh mode are proposed. Our QoS mechanism is developed by modifying the QoS mechanism of the PMP mode in IEEE 802.16. We compare our QoS mechanism against the default Mesh QoS mechanism of IEEE 802.16. The performance of both methods are analyzed by providing simulation results based on these two solutions. The results show that the default QoS mechanism introduces a delay of at least 100 ms, which makes it inappropriate for real time and multimedia services.