A multi-service vehicle-to-ground communication bandwidth allocation system and method

Abstract

The invention discloses a multi-service vehicle-to-ground communication bandwidth allocation system, comprising: a vehicle-to-ground communication bandwidth resource detection unit for real-time monitoring of the total bandwidth of the system and the bandwidth of each service; a vehicle-to-ground communication service bearing unit used to transmit vehicle-to-ground Business communication; vehicle-to-ground communication bandwidth resource management and allocation unit, which is used to allocate bandwidth according to the total bandwidth and vehicle-to-ground multi-service communication requirements and use particle swarm optimization algorithm to optimize bandwidth allocation. The disclosed embodiments of the present invention provide a multi-service vehicle-to-ground communication bandwidth allocation system and method. Aiming at the problem of high-speed train vehicle-to-ground wireless communication bandwidth resource management, the strategy of "safety priority and dynamic allocation" is adopted to dynamically allocate energy, so that According to the priority of transmission data and real-time requirements and other indicators, bandwidth is dynamically allocated, which effectively improves the reliability of train key safety information transmission and the overall utilization efficiency of system bandwidth.

Description

technical field [0001] The invention relates to the technical field of wireless communication between high-speed trains, in particular to a communication bandwidth allocation system and method for multi-service vehicles. Background technique [0002] High-speed trains have become one of the main ways for passengers to travel efficiently and save energy. With the increase of high-speed train operating mileage, the improvement of operating speed and the rapid development of information technology, a dedicated broadband vehicle-to-ground wireless communication system is required to control and dispatch train operations. , infrastructure service status monitoring and passenger information services provide an efficient wireless broadband communication system to ensure the safety of high-speed train operation and passenger experience. However, the current GSM-R and LTE-R vehicle-to-ground wireless communication technologies have limited bandwidth resources, making it difficult to ...

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Problems solved by technology

[0005] Aiming at the problem of insufficient vehicle-to-ground wireless communication bandwidth and thus affecting the stability of the performance of vehicle-to-ground transmission services, the present invention researches a reasonable and effective bandwidth allocation system and method based on the combination of asymmetric cooperative Nash negotiation game theory and particle swarm algorithm , carry out research on the bandwidth allocation of train-ground wireless communication, realize the stability and reliability of high-speed train train-ground wireless communication in the case of limited and dynamic train-ground communication bandwidth, ensure the safety of high-speed railway operation and the safety of passengers comfort

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