Study on Connectivity Probability of Vanets Under Adverse Weather Conditions at 5.9 Ghz

Fang Li,Wei Chen,Yishui Shui

doi:10.1109/access.2019.2962089

Abstract

Vehicular ad hoc networks (VANETs) are an important part of the next generation of intelligent transportation. For multimedia information transmissions, VANETs require high speed and a low-delay link between the vehicles. This paper focuses on a connectivity analysis of VANET high-speed and low-delay connections under different traffic densities and adverse weather conditions. In this paper, a channel measurement at 5.9 GHz under two kinds of traffic densities is first carried out. Then, the measured data for the path loss are used in the VANET model for the connectivity probability. Finally, we consider the influence of adverse weather conditions on the wireless signal and simulate the influence on the high-speed and low-delay data connectivity of VANETs. The results show that adverse weather will have a certain impact on vehicle-to-vehicle (V2V) communication.

Highlights

With the emergence of 5G, a large number of researchers have studied a series of strategies to increase the system performance of 5G [1]–[4], which are based on the high-speed and low-delay connection of the physical layer
This paper mainly considers the adverse weather conditions caused by rainy weather, snowy weather and dusty weather
This study focuses on the connectivity probability of Vehicular ad hoc networks (VANETs) in adverse weather

Summary

INTRODUCTION

With the emergence of 5G, a large number of researchers have studied a series of strategies to increase the system performance of 5G [1]–[4], which are based on the high-speed and low-delay connection of the physical layer. F. Li et al.: Study on Connectivity Probability of Vanets Under Adverse Weather Conditions at 5.9 Ghz communication distance is very large, and the electromagnetic wave needs to pass through the whole rainfall area. Based on the above analysis, this paper studies the effects of rainy, icy, snowy and dusty weather conditions on the highspeed, low-delay connectivity of VANETs. This paper first obtains the channel model for vehicle-tovehicle communications based on the measured data. Dusty weather will cause attenuation of the 5.9 GHz signal, which will change the transmission model and change the high-speed data transmission performance of VANETs. Different degrees of sandstorms will have different effects on the performance of VANETs. The simulation results prove that the research in this paper has guiding significance for the construction of vehicle-tovehicle multimedia communications.

MEASUREMENT RESULTS

SIMULATION RESULTS

CONCLUSION