Abstract
Mobile users connected to the WiMAX technology can use five different service classes according to their different needs. In this paper we propose priority based uplink scheduling scheme for IEEE 802.16 standard that improves the QoS performances of the WiMAX service classes, especially when the number of connections gets higher. Essential QoS parameters like throughput, delay and jitter have been calculated using the ns-2 simulation tool and changing the number of the ertPS connections. Obtained results prove that our proposed uplink scheduling algorithm gives better results compared with so far known uplink scheduling mechanism.
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