Research On Collaborative Allocation Strategy Of Ribbon Cellular Communication Bandwidth Resources In IoV

With the sustained development of smart network systems and 5G communication technologies,the Intelligent Transportation Systems(ITS)has become an important component of our daily production and life.In order to gradually achieve autonomous safety driving and 5G vehicular communication,the transmission and interaction of IoV traffic data(especially security beacons)have higher performance requirements in ITS.Therefore,research and optimization on the strategies of Vehicular Ad-hoc Networks(VANETs)bandwidth allocation and data dissemination are meaningful and engineeringly valuable.When the critical security beacons and extensive vehicular data are broadcast and interacted in the existing VANETs,it is easy to cause some adverse effects under high speed scenarios,such as longer latency and higher bit error rate.Therefore,different from the current practical isotropic mobile cellular network,the paper is introduced the early cell networking method of ribbon coverage,and build the novel VANETs model with ribbon cellular by adopting the IoV communication module in the NS3 simulation platform.Compared with the traditional coverage and networking methods,the paper is realized the theoretical research of the network and analysis of the performance parameters.Under the certain conditions,the article is achieved the improvement of communication performance index in ribbon cellular network,which is more suitable for future information application scenarios in the typical high-speed roads.There are some typical characteristics for the VANETs of high-speed movement,such as beacon self-organizing broadcasting and direct communication.For the Cellular Vehicle to Everything(C-V2X),the device-to-device(D2D)mode is applied in the wireless local area network(WLAN)which combine the 802.11 p protocol,and the paper is proposed the bandwidth-link resource allocation strategy by real-time judgment in the ribbon cellular networks.Meanwhile,the corresponding Ad-hoc networks and the radio channel propagation models are established by simulation,and the corresponding important network performance parameters are calculated by programming.The results of analysis show that the novel bandwidth-link resources collaborative allocation strategy in the ribbon C-V2 X networks,comparing with the current network which adopted the 802.11 p protocol,can approach the communication quality of data dissemination while effectively extend the D2 D direct distance.Compared with the traditional 4G-LTE mobile cellular networks,the system average bandwidth utilization efficiency(SABUE)increases 13.1%~18.2%,the capacity requirement of communication channel(CRCC)reduces 13.3%~28.6%,the data dissemination latency reduces 7.1%~15.6%,and the packet delivery ratio(PDR)raises 0.2%~1.3%.Moreover,with the reasonable promotion of the ribbon roadside enhancement factor,the performance indexes,such as the communication capacity of the roadside,can still be further improved.Based on the predictability of real-time position,velocity,driving direction and handover time in ribbon expressway,the article also attempts to research a novel data dissemination strategy by improving the link time slot allocation.The time slot by integrating and optimizing is consists of the novel frequency switching cycle,the bandwidth allocation cycle and the data dissemination cycle.Based on the above ribbon C-V2 X networks and the channel propagation models in NS3,the paper is similarly calculated and assessed the corresponding important network performance indexes.Compared with the traditional C-V2 X time slot allocation method,the SABUE increases 3.1%~21.4%,the average communication capacity(ACC)promotes 1.6%~11.9%,and the latency reduces 3.7%~5.7%.