Performance Analysis And Optimization For Future Mobile Communication Networks Based On Stochastic Geometry

Mobile communication technology is increasingly inseparable from the daily life,work,and even industrial production of human society.In the future,the mobile networks should provide users with high-quality,multi-scenario communications to achieve everything interconnected anywhere anytime.The new application scenarios bring convenience,swiftness and intelligence to our lives,and also put forward higher requirements for the network.In this paper,three different mobile communication scenarios are modeled by using the tool of stochastic geometry.Based on the models we future analyze the problems to be solved and the main system performance,and propose reasonable technical solutions and system parameter setting suggestions to improve network performance.The three mobile communication scenarios are:1.The mobile communication of indoor users in Three-Dimensional(3D)Ultra-Dense Network(UDN)scenario;2.The Vehicle to Vehicle(V2V)communication network scenario based on CIAT resource selection scheme;3.The inter-platoon communication scenario based on Geo-based Resources Allocation(GRA).In the first part of this paper,the 3D UDN scenario is modeled with the tool of stochastic geometry.For the interference and energy efficiency problems in UDNs,a mechanism of sleep strategy combined with coordinate multi-point transmission is proposed.Based on the mechanism,the expressions of coverage probability and network energy efficiency are deduced,and the optimal Base Station(BS)density that satisfies coverage probability constraint is calculated.In the second part of this paper,a Control Information Assisted Three-step(CIAT)resource selection scheme based on Cellular Vehicle-to-everything(C-V2X)technology for future vehicular communication network is investigated.First,an effective analytical approach to characterize the properties of the CIAT resource selection scheme is developed,and the expression of resource exclusion ratio is derived.Then the closed-form expressions for the average successful transmission probability and the packet inter-reception time are derived.In the third part of this paper,the inter-platoon communication based on GRA is analyzed by using the tool of stochastic geometry.Based on that,the resource partition and message transmission schemes with GRA for inter-platoon communication are proposed,and the success transmission probability and average energy efficiency are analyzed detailed.