A Lidar measurement device for vehicular traffic surveillance and method for use of same are disclosed. The position measurement is preferably combined with transponder measurements of tire pressure andor temperature, and the measurement information is transmitted from a tire or wheel antenna to a receiver with one or more antennas on the vehicle. A modified column-mixing transformation uses bit-shifting and XOR operations, thereby avoiding some multiplications and modulo reductions and resulting in some 9-bit State elements. The analog signal supplied through the signal line So is externally outputted via a external output terminal 4. A transmissive, optical element overlays the engine for preventing light generated by the illumination assembly from reflecting back towards the image sensor. A power headroom report is then generated based on the computed power headroom and such a report is then transmitted, typically from the mobile device to a base station.