The Performance Analysis Of Coverage And Capacity In Mm Wave VANET

With the development of communication technology,the traditional communication network is developing and it is further developing into the field of Internet of Things.As an important part of the Internet of Things,the Internet of Vehicles has gradually received attention and extensive research by scholars at home and abroad.The communication requirements between the vehicle networking nodes mainly include data such as vehicle driving status collected by various on-board sensors and multimedia communication requirements.Due to the characteristics of high-speed movement of vehicles,in the process of vehicle communication,not only the communication characteristics of the communication nodes are required,but also the rate of communication are more important.However,the rate is also influenced by the Inteference,the background noise,the channel fading and et al.On the other hand,the lack of spectrum resources in traditional lowfrequency regions has become a factor limiting the development of wireless communications.While designing more advanced communication schemes,the development of spectrum resources using high frequency regions has also become another research hotspot.In this context,the millimeter wave band has been extensively studied due to its theoretical 270 GHz bandwidth rich spectrum resources and has already had considerable research results.Therefore,this paper mainly studies the performance of the VANET in the case of selecting millimeter waves as the transmission carrier while taking the communication factors such as the co-channel interference,the channel fading and the blocking effect of the mmWave into account.In this paper,we consider the vehicles that are moving on a unidirectional single-lane highway.Firstly,the millimeter-wave antenna model,beam model and channel fading model are established.On this basis,the communication model of the VANET is established.Finally,the interference of the vehicle communication node is analyzed and calculated by tools such as random geometry,and the performance parameters such as coverage probability and spectrum efficiency of the network are obtained.Furthermore,this paper considers the performance of the VANET under different distribution models of vehicular nodes.When the distribution of the driving-vehicle are independent of each other,research shows that the Poisson Point Process can well characterize the arrival process and distribution of the vehicles.While the driving and distribution states between vehicles interact with each other,a large amount of statistical data indicates that the car following model can better characterize the distribution and variation of the vehicles.We will analyze the coverage probability,maximum node density firstly and area spectral efficiency,then Monte Carlo simulation is used to verify the numerical analysis results.On this basis,we also made necessary analysis of our analysis result.