An enhanced two level scheduler to increase multimedia services performance in LTE networks

LTE is becoming the most important radio access technology for mobile Networks, providing significantly a ubiquitous broadband access. This breakthrough brings strong QoS support, especially for multimedia services which are the most used applications in telecommunication. To reach its goals, LTE needs an appropriate packet scheduling scheme. This function is fundamental and very challenging, particularly in presence of multimedia services which require strict constraints on packet delay and packet loss. In this paper, we present an enhanced scheduling scheme which provides strict delay bounds and guarantees very low packet loss rate to multimedia services. This scheme is made of two levels that work in series and are designed to reach our goal. The performance of our proposed algorithm have been evaluated and compared to other schemes in the literature and simulations results demonstrated its effectiveness by showing that it optimized multimedia services performance and provided the best QoS support.