On Evaluating V2X Channel Models with COTS 802.11p Devices in Urban Field-Trials

In this paper, we compare a simulated 802.11p V2X packet error rate with a measurement campaign in an urban field-trial scenario to estimate the validity of the utilized channel model. A tapped delay line channel model is selected and evaluated in comparison to the real-world performance of a commercial of-the-shelf unit. Finally, potentially problematic pitfalls of the V2X devices used are highlighted for future field testing and performance evaluation in laboratory environments.