Narrow-band measurement and analysis of the inter-vehicle transmission channel at 5.2 GHz

The inter-vehicle transmission channel is characterised based on narrow-band measurements at 5.2 GHz. The measurement setup consists of a transmitter and a receiver, which are installed in two different vehicles. While measuring the transmission channel, both vehicles are manoeuvred in realistic road traffic scenarios. Measurements are obtained for four different classes of environments: urban, suburban (village), motorway and highway. Statistical functions, such as the cumulative distribution function (CDF) of the received signal, the average Doppler power density spectrum and the level crossing rate (LCR), are derived for each class. The measured results are compared to analytical functions, such as the Rice, the Rayleigh, the Gauss or the Nakagami distribution. The least squares and the conjugate gradient method are used to fit the parameters of the analytical functions to the measurement data.