Abstract:
WiMAX, one of the emerging wireless broadband networks, was designed to support traffic from
applications with diverse QoS requirements. In WiMAX, an efficient resource management technique
such as scheduling is required for the proper allocation of network resources to these data streams.
This article proposes an enhanced priority load-aware scheduling (EPLAS) algorithm to improve the
performance of WiMAX networks. The proposed scheme adaptively determines the weight of each
queue based on the queue load. It also introduces a packet drop control mechanism that reduces the
packet drop rate and increases the average throughput of the network by prioritizing packets with
the earliest deadlines within each queue. The performance of EPLAS was evaluated against other
benchmark schemes using severalsimulation experiments. The resultsrevealed that EPLAS performed
significantly better than the benchmark algorithms in terms of average delay, average packet drop
ratio, and average throughput.
