Dynamic Scheduling Algorithm based on Priority Assignment for LTE-V2X vehicular Networks

摘要

The rapid evolution of the wireless communication technologies along with the growing number of connected vehicles and the limitation of available radio resources make scheduling tasks very important for LTE-V2X vehicular networks. Accordingly, this paper presents a new optimal scheduling algorithm for V2X connections called DSA-PA, which improves performances in terms of Quality of Service (QoS), throughput and fairness. The proposed algorithm consider the traffic classification imposed by V2X exigency and aims to maximize the system throughput by taking into account the channel conditions of Vehicular User Equipment (VUE) expressed by the Signal-to-Interference-plus-Noise Ratio (SINR) value. The optimal distribution of the available Resources Blocks (RBs) is based on a dynamic reallocation process depending in the average blocking rate value (ABR) especially for vehicular Safety Traffic (ST).