WiMAX is a well-known broadband wireless access technology that supports multimedia
transmission users. IEEE 802.16e has evolved into five quality of service (QoS) scheduling types for
WiMAX uplink transmissions, but downlink transmission types have not yet been defined. To assist in
this task, and to support efficient base station packet scheduling that takes QoS into account, I propose
an adaptive time-utility function (A-TUF) packet scheduling scheme to improve downlink real-time
(RT) traffic QoS and whole system throughput. Simulation results indicate that the proposed scheme is
capable of providing lower RT packet delay and loss rate compared to conventional TUF-based
algorithms.
