Vehicle-to-Pedestrian Channel Characterization: Wideband Measurement Campaign and First Results

Abstract

Thousands of fatalities among pedestrians are caused every year by traffic accidents. Vehicle-to-pedestrian (V2P) communication promises to prevent accidents by enabling collision avoidance application. To develop and test a V2P communications system, accurate knowledge of the propagation channel is essential. However, only limited analysis of V2P channel have been reported in the literature. To fill this gap, the German Aerospace Center conducted an extensive channel sounding measurements campaign in a controlled environment. The measurements were performed at 5.2 GHz with a bandwidth of 120 MHz. In parallel to the channel sounding measurements, performance measurements were carried out using ITS-G5 system at 5.9 GHz and with a bandwidth of 10 MHz. This paper describes the setup and the scenarios for the two measurements. First results on channel evaluation in different scenarios as well as path loss models are presented.

Large-Scale Fading Characteristics and Models for Vehicle-to-Pedestrian Channel at 5-GHz

“…We estimated the relative permittivity for the ground as r = 1.05 which is close to the values reported in [22]. Details about the model can be found in [7]. The parameters of the log-distance pathloss model are estimated in a minimum mean square error sense and listed in Table 2.…”

“…The two-ray ground reflection pathloss model has been reported to fit well to the measured pathloss in LoS scenarios [7], [8], and [21]. Fig.…”

“…Few recent studies tackled the subject of V2P communications recently. Rashdan et al in [7] presented pathloss models for LoS and NLoS scenarios based on a V2P wideband channel measurement campaign. The authors found that the two-ray pathloss model fits the measured pathloss for the LoS scenario in case of a static receiver (Rx).…”

“…In this section we describe the V2P measurement campaign which is the basis to develop the V2P channel model. Further details on the measurement campaign itself can be found in [7].…”

Measurement‐based geometrical characterisation of the vehicle‐to‐vulnerable‐road‐user communication channel

“…Few recent studies focused on modeling some aspects of the V2VRU channel. Rashdan et al in [17] and [18] presented a narrowband channel model for the V2VRU channel considering a collision scenario between a vehicle and a pedestrian based on wideband channel measurements. The path loss was studied in [19] based on narrowband channel measurement in LoS when the pedestrian is stationary and moving parallel to the road.…”