Wireless Resource Allocation Algorithm with High Reliability and Low Delay for Railway Container

Abstract

The intelligent container system improves the container operation efficiency through the real-time collection and transmission of information.In order to ensure the ultra reliable and low delay communication of container terminals,this paper pro-poses to transmit the information in the form of the short packets,and studies the sum rate maximization of the uplink transmission system for the railway container terminals in the multi cells.This paper proposes a spectrum resource allocation problem.Multiple cells share spectrum resources,and the terminals in the cells obtain the spectrum through competition.The game theory model is used to construct this competition relationship,and Nash equilibrium solution is proved.The best Nash equilibrium solution is the global optimal solution for system and rate maximization.Then,a distributed iterative algorithm is designed,which only needs local information interaction.It is proved theoretically that when the smoothing coefficient is small enough,the algorithm can converge to the best Nash equilibrium point with any high probability.Finally,the proposed algorithm is verified by simulation.Simulation results show that the proposed algorithm has fast convergence speed and is better than best response dynamics(BRD) algorithm and No-regret algorithm.

Keywords

• ultra reliable and low delay|short packets|spectrum resource allocation|game theory|nash equilibrium solution