Abstract
Vulnerable road users such as cyclists and pedestrians are now being increasingly integrated into connected driving issues. The focus of this paper is on cyclists with pedelecs as one group of vulnerable road users. Direct sidelink communication between cyclists and cars is also examined. In this study we present measurements obtained with commercially available on-board units operating at 5.9 GHz and based on LTE V2X. The antennas are connected to the OBU in different constellations using transmit and/or receive diversity. Simulations are used to support the measurements. For the intersection example scenario we observed reliable communication between a car with a distance of 25 m and a pedelec with a distance of 60 m towards the intersection. In a rural scenario, the communication range can be more than 400 m. However, the results depend highly on the antenna position on the pedelec.
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