5G heterogeneous network system and cooperative vehicle computing task unloading method thereof

Abstract

The invention provides a 5G heterogeneous network system and a cooperative vehicle computing task unloading method thereof, and solves the problems of computing task imbalance, computing resource shortage and lack of dynamic cooperation among participant members. The small cellular base station in the edge computing and 5G heterogeneous network integrated system provides high-quality computing service for moving vehicles, and the macro cellular base station performs efficient management on computing resources of the small cellular base station. The method comprises the steps that a mobile vehicle sends a task unloading request; the macro cellular base station decides to execute a calculation task scheme and schedules the small cellular base station; after the task calculation is completed,the macro cellular base station and the moving vehicle negotiate a calculation task unloading service protocol in a two-round game; and after negotiation, the two parties deliver results or task rewards to complete the computing task unloading service. According to the method, scheduling, common result caching and price gaming are planned as a whole, the task completion rate and the effectivenessof participants are improved, and the method is used for providing efficient calculation task unloading service for automatic driving vehicles.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and mainly relates to a game theory scheme for collaborative vehicle task offloading, specifically an edge computing and 5G heterogeneous network integration system and its collaborative vehicle computing task offloading method to optimize the provision of 5G heterogeneous network computing services. Background technique [0002] Since the beginning of the new century, with the high growth rate of the domestic economy, the demand for automobiles has remained quite high. With the introduction of the strategy of building a strong transportation country and the rapid development of vehicle technology, users' requirements for driving experience are also gradually increasing. In this case, the emergence of autonomous driving technology will be a great leap in the field of vehicle technology, and it will also completely change the way people transport and everyday life. Vehicles in...

AI Technical Summary

Problems solved by technology

However, although the vehicle computing task offloading scheme is constantly updated and improved, the existing research still has the problems of unbalanced distribution of vehicle computing tasks, shortage of computing resources, and lack of dynamic cooperation among members participating in task computing. Specifically, it includes: the existing research does not take into account the unbalanced distribution of vehicles in the system service area. If the vehicle density in an area is too high, it may cause the calculation tasks requested by the vehicles to be unable to be completed on time, resulting in poor performance. Mobile vehicle service experience; existing research does not take into account that the computing resources of the system are not unlimited. If the number of requested tasks is too large, some of the computing tasks requested by the vehicle may not be executed, resulting in a lower task completion rate ; Existing research does not take into account the dynamic cooperation among the members involved in the task calculation. After the large base station receives the task request message from the mobile vehicle, it often randomly selects a group of idle small base stations to perform the calculation task. These small base stations may Will declare too high a task reward amount or may not be able to complete the task at all, which will not only lead to unpredictability of costs, but also reduce the task completion rate

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