Performance Analysis of Cellular V2V Communications (LTE Mode-3 and 5G Mode-1) in the Presence of Big Vehicle Shadowing

Vehicle-to-Vehicle (V2V) communication requires highly reliable wireless links to deliver safety messages effectively. Signal interference or blockages caused by big vehicles like buses and trucks can deteriorate communication quality, causing loss of packets containing safety information transmitted among vehicles. Hence big vehicle shadowing critically influences V2V communication quality. This paper investigates the impact of big vehicle shadowing on V2V communications, considering cellular network coverage of vehicles. Under big vehicle shadowing, we analyse and derive the reuse distance and outage probability of V2V communications. To mitigate the negative of big vehicle shadowing, beamforming-based reception and transmission along with relay approaches are shown. Simulation results show that the proposed approaches significantly improve the performance of V2V communications in the presence of big vehicles.