Data transmission system and method based on vehicle-cluster-communication cell three-layer architecture

Abstract

The invention discloses a data transmission system and method based on a vehicle-cluster-communication district three-layer structure. The system comprises radio communication devices installed on vehicles, wherein radio communication devices on all vehicles driving on each one-way driving section of each divided communication area in a preset region are set to be cluster members of a cluster structure; each radio communication device comprises a message source node radio communication device and a destination node radio communication device; when the message source node radio communication device and the destination node radio communication device belong to a same communication district, the message source node radio communication device is used for forwarding a source data packet to the destination node radio communication device through the transmission of the cluster members in the cluster structure, thereby realizing the communication between the message source node radio communication device and the destination node radio communication device. The data transmission system and method effectively reduce the adverse effect of road network vehicle high-speed movement to links, decrease broken link times, and reduce a packet loss rate.

Description

technical field [0001] The invention belongs to the field of data communication, and in particular relates to a data transmission system and method based on a vehicle-cluster-communication cell three-layer structure. Background technique [0002] The road traffic system is a typical complex giant system. Relying on the traditional intelligent traffic management method, it is difficult to solve the deteriorating frequent accidents, traffic congestion and the resulting environmental pollution from the perspective of vehicles or roads. Modern science and technology such as wireless sensor networks have promoted the development of vehicle-road coordination technology based on vehicle-vehicle and vehicle-road communication. Cooperative Vehicle Infrastructure System (CVIS) acquires vehicle and road information based on wireless communication, sensor detection and other technologies, and conducts information exchange and sharing through vehicle-vehicle and vehicle-road communicatio...

AI Technical Summary

Problems solved by technology

[0006] However, the characteristics of self-organization, distribution, and topology change of the vehicle-road communication network have brought severe challenges to the data transmission of large-scale vehicle-road communication networks.

In the vehicle-road communication network, the farther the geographical distance between the message source node and the destination node is, the more nodes need to be considered in the process of establishing the communication link. Greater control overhead is required to build and maintain

In addition, with the increase of network scale, the randomness of road network traffic status increases, the distribution and movement of vehicles are more difficult to predict, and the network topology is more variable, making the maintenance of data transmission routes more difficult

Images