Cost-efficient C-V2X Antenna Installation

Correct operation of V2X safety applications depends on achieving a minimal effective communication range to ensure the driver has sufficient reaction time. 3GPP specifies the usage of two RX antennas for LTE communication in general. Antenna pattern and placement, coupled with the shape of the vehicle, impacts V2X communication range.

In this paper, Autotalks examines two options to reduce C-V2X system costs. The first one is using a single antenna, saving significant costs of a front antenna. The second configuration examined is removing the cable compensator. Instead of the compensator, the front antenna is connected to the ECU using a low-cost long COAX cable, introducing high attenuation, saving the cost and complexity of compensator.

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