Development Of System-level Simulation And Resource Allocation For D2D Based Vehicular Communication Networks

The number of cars in recent years is growing rapidly with the development of modern society, which makes people's life more convenient. However, the growth of car numbers may cause more and more traffic congestion and traffic accidents. To solve these problems,researchers have paid more attention on D2D-based vehicular communication networks.The topic of the paper comes from the National Planed Major Science and Technology Project named Study on Key Technologies of 2015ZX03001030_ LTE-Advanced (3GPPR13) Standards and Validation.This paper developed a system-level simulation platform for D2D-based vehicular communication networks, and studied resource allocation algorithms in D2D-based vehicular communication networks.Firstly, we studied the research situation and communication technologies in vehicular communication networks, meanwhile concluded the studies of the D2D-based vehicular communication networks, resource allocation algorithms and simulation platform of vehicular communication networks.Secondly, this paper designed the platform in details, aiming at its scalability, high-speed mobility, fast switching abilities between sending state and receiving state, realized the simulation platform based on overall design and sub-module design, verified its functionality and availability.Finally, this paper studied the present resource allocation algorithm based on D2D-based vehicular communication networks, and proposed an improved algorithm based on Semi-Persistent + sensing. The simulation results show that the proposed algorithm can enhance the PRR and average PRR of vehicular communication effectively and improved the user experience obviously.