A Message Distribution Mechanism Based on Distributed Game Theory in Lte-V Network

When vehicles are located on the edge of cells or in areas without network coverage, it's difficult for them to access to cellular network and communicate with base stations. To solve the problem, this paper takes the characteristics of LTE-V network and the high-speed mobility of VANETs into consideration, and establishes a model of coalitional game with transferable payoff. In the design of utility function, we also consider the expected throughput of nodes and transmission delay, and propose a multi-objective coalition formation algorithm. The simulation results show that the message distribution mechanism can solve the multi-objective optimization problem proposed in the paper effectively, and enable more vehicles to receive required messages in short time.