On the Outage Probability of Vehicular Communications at Intersections Over Nakagami-m Fading Channels

TL;DR

This paper analyzes the outage probability of vehicular communications at intersections over Nakagami-m fading channels, providing closed-form expressions and comparing LOS/NLOS and intersection/highway scenarios.

Contribution

It derives new closed-form outage probability expressions for vehicular communications at intersections under Nakagami-m fading, considering various scenarios and validating with simulations.

Findings

NLOS scenarios outperform LOS in outage probability.

Intersection scenarios have higher outage than highway scenarios.

Performance degrades as the destination approaches the intersection.

Abstract

In this paper, we study vehicular communications (VCs) at intersections, in the presence of interference over Nakagami-m fading channels. The interference are originated from vehicles located on two perpendicular roads. We derive the outage probability, and closed forms are obtained. The outage probability is derived when the destination is on the road (vehicle, cyclist, pedestrian) or outside the road (base station, road side unit). We compare the performance of line of sight (LOS) scenarios and non-line of sight (NLOS) scenarios, and show that NLOS scenarios offer better performance than LOS scenarios. We also compare intersection scenarios with highway scenarios, and show that the performance of intersection scenarios are worst than highway scenarios as the destination moves toward the intersection. Finally, we investigate the performance of VCs in a realistic scenario involving several lanes. All the analytical results are validated by Monte-Carlo simulations.