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Abstract
In this paper, the vehicle‐to‐vehicle (V2V) channel characteristics in peak hours at the 5.9 GHz band in two typical urban road scenarios, the urban straight road and the intersection, are investigated. The channel characteristics, such as path loss, root mean square (RMS) delay spread, and angular spread, are derived from the ray‐tracing (RT) simulations. Due to the low height of antennas at both the transmitter (Tx) and the receiver (Rx), the line of sight (LOS) between the Tx and the Rx will often be obstructed by other vehicles. Based on the RT simulation results, the shadowing loss is modelled by the multimodal Gaussian distribution, and path loss models in both LOS and non‐LOS (NLOS) conditions are obtained. And the RMS delay spread in two scenarios can be modelled by the Weibull distribution. In addition, the deployment of an antenna array is discussed based on the statistics distribution of the angular spread.
Highlights
As one of the important parts of an intelligent transportation system (ITS), the V2V communication system allows vehicles to exchange information about the surrounding traffic situation to improve safety, reduce traffic congestion, and provide a comfortable driving experience [1]
In this paper, the V2V channel characteristics of an urban straight road and intersection, e.g., path loss, root mean square (RMS) delay spread, and angular spread, in peak hours at the 5.9 GHz band are investigated based on RT
RT simulation results show that the line of sight (LOS) probability nearly linearly decreases with the Tx-Rx distance, and the shadowing loss caused by obstructing vehicles can exceed 20 dB even in the short Tx-Rx distance
Summary
As one of the important parts of an intelligent transportation system (ITS), the V2V communication system allows vehicles to exchange information about the surrounding traffic situation to improve safety, reduce traffic congestion, and provide a comfortable driving experience [1]. In this paper, the V2V channel characteristics of an urban straight road and intersection, e.g., path loss, RMS delay spread, and angular spread, in peak hours at the 5.9 GHz band are investigated based on RT. Channel characteristics in both LOS and NLOS conditions, the probability distribution of LOS in each scenario, and the distribution of shadowing loss and RMS delay spread are modelled. It includes the probability distribution of LOS in each scenario and the derivation of path loss and modeling of shadow fading in LOS and NLOS conditions.
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