Multi-service train-ground communication bandwidth distribution system and method

Abstract

The invention discloses a multi-service train-ground communication bandwidth distribution system comprising a train-ground communication bandwidth resource detection unit used for monitoring overall system bandwidth and bandwidth of each service in real time; a train-ground communication service carrying unit used for transmitting train-ground multi-service communication; a train-ground communication bandwidth resource management distribution unit used for performing bandwidth allocation according to the overall bandwidth and the requirement of train-ground multi-service communication, and uses a particle swarm optimization algorithm to optimize bandwidth distribution. According to the multi-service train-ground communication bandwidth distribution system and method provided by the embodiment of the invention, aiming at the train-ground wireless communication bandwidth resource management problem of high-speed trains, a strategy of security first and dynamic allocation is used for dynamically distributing energy, so that the bandwidth can be dynamically distributed according to index requirements such as priority and real time requirements of transmission data, and the transmissionsecurity of key security information of the trains and the overall utilization efficiency of the system bandwidth are effectively enhanced.

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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