Connectivity probability analysis of VANETs at different traffic densities using measured data at 5.9 GHz

摘要

Vehicular Ad Hoc Networks (VANETs) is one of the most important applications in the fifth generation. The stable connection between the vehicles can guarantee the construction of VANETs. This study(5) stresses on the connectivity probability analysis under different vehicle density. Firstly, this study investigates the matched path loss models under four kinds of traffic flow conditions: high, medium traffic density in urban areas and two low traffic density in suburb areas based on the analysis of measured vehicle-to-vehicle (V2V) data at 5.9 GHz. Secondly, based on the measured path loss and small-scale fading data, we build a VANETs model considering single-hop link connectivity and signal blocking phenomenon in multi-hop link. Finally, the VANETs connectivity probability under different traffic flows is obtained as well as the obstruction considered effective communication coverage. The results show that the integrated VANETs connectivity model based on measured data can accurately reflect the V2V communication environment under real conditions. (C) 2019 Elsevier B.V. All rights reserved.