Call Admission Control for Real-Time and Non-real-time Traffic for Vehicular LTE Downlink Networks

Provision Quality of Service (QoS) is a crucial challenge in any vehicular multimedia wireless application. In wireless applications, maintaining QoS requirements of various calls is a more challenging issue because of the concurrent need to prioritize the handoff calls and new calls trying to access the network. In this paper, a novel call admission control scheme is proposed which prioritizes calls and differentiates the calls types into real-time and non-real-time traffic. By doing so, the scheme reduces both the handoff blocking probability, new call dropping probability, and improves data throughput utilization. Experimental results reveal the outstanding performance of the proposed scheme as it is able to achieve a better call blocking and call dropping probabilities compared to Non-prioritize scheme.