Performance of C-V2X Communications for High Density Traffic Highway Scenarios

The development of Long Term Evolution (LTE) cellular technology has created several new technologies in the Vehicular Ad hoc Network (VANET) environment. One of which is Cellular Vehicle to Everything (C-V2X). There are two communication models in the C-V2X, namely Mode 3 and Mode 4. In Mode 4, data transmission is carried out directly between vehicles using the PC5 interface. This study investigates the performance of C-V2X Mode 4 in high-density traffics highway scenarios using the OpenCV2X framework. The initial simulation results show that the performance of Packet Delivery Rate (PDR) has not been able to reach the value of 99%. Using the resource keep probability value P
rk
=0.8 can significantly improve PDR performance by 3.64% and 12.93% for the N
V
= 100 (low-density) and N
V
= 200 (high-density) scenarios, respectively. Likewise, the noSCI error values showed an increase of 99.88% and 99.78% for the low-density and high- density scenarios, respectively.