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A data transmission method and related device for Internet of Vehicles

A data sending method and Internet of Vehicles technology, applied in the field of Internet of Vehicles, can solve problems such as large data receiving delay, inability to provide data transmission experience, and slow one-to-one transmission speed, so as to reduce data overhead and reduce the probability of transmission conflicts , the effect of improving efficiency

Active Publication Date: 2021-12-07
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are broadcast nodes on the vehicle, no matter how many vehicles are running on the lane, only one vehicle is broadcasting data packets. When there are many vehicles on the lane, the one-to-one transmission speed is slow, and the data reception delay is relatively slow. Large, unable to provide a good data transfer experience

Method used

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  • A data transmission method and related device for Internet of Vehicles
  • A data transmission method and related device for Internet of Vehicles
  • A data transmission method and related device for Internet of Vehicles

Examples

Experimental program
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Effect test

Embodiment

[0093] Divide the base station data into 3 (C=C 1 +C 2 +C 3 ) share, the three node vehicles in the content sharing vehicle cluster download a copy of data from the base station, and then multicast part of the data they own to each other to the other two node vehicles in the content sharing vehicle cluster. Assuming that the total data C has 12 data packets, the node vehicle has P 1 ,P 2 ,P 3 ,P 4 ;node vehicle 2 owns :P 5 ,P 6 ,P 7 ,P 8 ;node vehicle 3 owns :P 9 ,P 10 ,P 11 ,P 12 . Then the three node vehicles in the content sharing vehicle cluster respectively multicast and retransmit their data packets in the content sharing vehicle cluster, so that all the three node vehicles in the content sharing vehicle cluster have all the data. For the ACK mechanism, in this example, each time a retransmission packet is transmitted, wait for the ACK confirmation before retransmitting the next one.

[0094] Node vehicle 1 multicasts its own P to node vehicle 2 and node v...

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Abstract

The present application discloses a data transmission method for Internet of Vehicles, including: when a node vehicle obtains a part of data packets from a base station, the node vehicle performs multicast sharing with other node vehicles according to the multicast data loss matrix; wherein, the Other node vehicles are node vehicles that have received other partial data packets; when the node vehicle receives the complete data packet, the node vehicle will multicast the complete data packet to other vehicles in the same direction according to the multicast data loss matrix. pass. One-to-many data transmission is realized through the multicast data loss matrix, and many-to-many data transmission is realized through multiple node vehicles, which improves data transmission efficiency, reduces delay, and improves user experience. The present application also discloses a data transmission system of the Internet of Vehicles, a vehicle electronic control device and a computer-readable storage medium, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of the Internet of Vehicles, and in particular to a data transmission method of the Internet of Vehicles, a data transmission system, a vehicle electronic control device, and a computer-readable storage medium. Background technique [0002] With the continuous development of information technology, the Internet of Vehicles and the Vehicle Ad Hoc Network have emerged in the field of electronic communication technology, making vehicles more and more intelligent, safe and comfortable when driving on the lane. At the technical level, these communication networks rely on vehicle-to-vehicle communication and vehicle-to-infrastructure communication. Therefore, in the general process of data transmission on the road, the vehicle first receives the corresponding data content from the base station beside the road, and then sends data packets to other vehicles on the road through the vehicle node. [0003] A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
CPCH04L1/1607H04L1/1809H04W4/06H04W28/04H04W4/44H04W4/46
Inventor 侯嘉刘鑫阳光
Owner SUZHOU UNIV
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