A delay priority scheduling algorithm for downlink real-time traffic in LTE networks

Long Term Evolution (LTE) is a main mobile communication technology in the future. For the reason that different kinds of multimedia applications have different quality of service (QoS) requirements, especially for Real Time (RT) traffics, it is necessary to design an effective scheduling algorithm to satisfy the various kinds of QoS needs. In this paper we propose a new scheduling algorithm named DP-VT-MLWDF. The simulation results of the proposed scheduler indicate an evident improvement of the QoS performance parameters for RT traffics, e.g., packet loss rate, average throughput, fairness index.