Outage Probability Analysis for D2D-Based Multi-Antenna V2V Underlay System

Intelligent transportation technologies are continuously evolving with the advancement in wireless technology. A device-to-device (D2D) based vehicular-to-vehicular (V2V) underlaying cellular network provides efficient spectrum reuse, reduces latency, and higher data rate. This paper considers multi-antenna V2V underlaying cellular networks in rush hour multilane highway scenarios. The closed-form expressions for the outage probability are deduced for i) D2D-based V2V transmission and ii) relay-assisted V2V communication. The links are considered to be Rayleigh faded. The outage performance is analyzed in the presence of an interfering link sharing the resources. The effect of relay residual interference (RSI) at the relay node is also considered. The high signal-to-interference and noise ratio (SINR) approximations of the outage probability are derived. The diversity order of the system is determined.