V2V radio channel properties at urban intersection and ramp on urban viaduct at 5.9 GHz

Abstract

As a hotspot of wireless communication, vehicular communication is playing an important role in the smart city. This study focuses on vehicle-to-vehicle (V2V) radio channel characteristics at 5.9 GHz band based on measurement, under a ramp with soundproof wall on the urban viaduct and an urban intersection scenario, which are two similar but with slight difference propagation environments. Differences of V2V radio channel characteristics between two scenarios have been measured and analysed, in the view of best fit distribution of fades, power delay profile, delay spread, channel gain and Doppler spread. It is found that Weibull and Ricean distribution has a good match in non-line-of-sight and line-of-sight region, respectively. Transformation of different propagation mechanisms can increase or reduce the received power by 9-11 dB on average. Also, the power delay profile and root mean square delay spread are influenced by the different propagation conditions. Moreover, Ricean K-factors and Weibull shape parameters are modelled based on the least-square. The comparison of channel properties between these two classical urban scenarios is vital to the optimal design and performance of V2V communication system.