LTE-V2I System Performance Under Different Stochastic Channel Model for Highway Scenarios

Abstract

Vehicle-to-Everything (V2X) is an important research field to study nowadays. This importance comes from that the V2X applications consist of many networks types like Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) which they consider the most proper networks in Fifth Generation (5G) systems. The importance of V2I comes from the potential to improve vehicle road safety, enhance traffic and travel efficiency, and provide convenience and comfort for passengers and drivers. These importances need high throughput and less error in communication to meet all the user requirements. At high-speed scenarios, the LTE network is better than to use than the IEEE 802.11p because of its wide coverage and no hidden node problem. The problem in Long Term Evolution for vehicle (LTE-V) is that when travelling at high speed, the doppler effect increases cause a very fast changeable channel characteristic that leads to degradation on the system performance. The solution is to use a channel model capable to use in highway scenarios. In this paper, a channel model called the vehicular model (V2I-H) is introduced with an ability to work in highway scenarios with Line-of-Sight (LoS) and Non-LoS links. The performance metrics used in this paper are the Block Error Rate (BLER) and throughput performance of the V2I-H channel model. The simulation performed at high speed equals to 140 km/h in 10 MHz bandwidth for the 2.6 GHz carrier frequency compared with low speed equals 10 km/h. The simulation results show that the V2I-H channel model is suitable to use at high-speed travelling and gives a throughput value reaches to 7 Mbps compared with the channel model used in the low-speed environment.