Wireless channel access control method based on vehicle teams

An access control and wireless channel technology, applied in the field of wireless channel access control of fleets, can solve the problem of not getting the opportunity to send business data, and achieve the effect of reducing the probability of vehicle message conflict and reducing the number of frames

Inactive Publication Date: 2018-08-31
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0024] In order to solve the problem in the prior art that vehicle wireless transceiver equipment stays on the control channel for a long time and cannot obtain sufficient business data transmission opportunities, the present invention provides a wireless channel access control method based on fleets, which reduces control by centralized information transmission at the front of the vehicle. the number of frames in the channel while reducing the probability of message collisions between vehicles in the control channel

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  • Wireless channel access control method based on vehicle teams
  • Wireless channel access control method based on vehicle teams
  • Wireless channel access control method based on vehicle teams

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Embodiment Construction

[0054] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.

[0055] In the wireless ad hoc network, as the number of vehicles increases, in order to allow the safety warning information to be transmitted in time, so that more vehicles, especially team members, can receive it in time, the wireless channel access control method based on the team of the present invention uses different The leading vehicles of the fleet are prioritized, allowing them to compete for channels with different transmission probabilities. At the same time, the transmission probability can be dynamically adjusted according to the content of specific safety warning information, so that the overall performance of the system can be maximized under the premise of priority transmission of emergency information. optimal and the maximum thro...

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Abstract

The present invention discloses a wireless channel access control method based on vehicle teams. The method is applied to the technical field of wireless communication, and is used for solving the problem that in the prior art, vehicle wireless transmitting-receiving equipment cannot fully transmit service data due to long residence on a control channel. Through adoption the method of invention, head vehicles of different vehicle teams are divided by priority, so that the head vehicles compete for the channel with different transmitting probabilities, at the same time, the transmitting probabilities also can be dynamically adjusted based on specific content of security warning message, so as to achieve the optimal overall performance and the maximum throughput of a system on the precondition of giving priority to urgent message.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a wireless channel access control technology for fleets. Background technique [0002] Vehicle Wireless Ad Hoc Networks (VANETs) is a specific form of IoT technology applied to the field of intelligent transportation. Compared with traditional intelligent transportation systems, VANETs have more characteristics such as initiative, interactivity, real-time and accuracy, and can refer to the use of advanced sensing technology, network technology, computing technology, control technology, and intelligent technology to control roads and traffic. Carry out comprehensive perception, realize the interaction of large-scale and large-capacity data between multiple systems, control the traffic of each vehicle in the whole process, and control the traffic of each road in full time and space, so as to provide traffic efficiency and traffic safety. application. [0003] In VANETs, ​​ch...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/40H04W4/46H04W4/20H04W28/02H04W72/04H04W72/10H04W74/08H04L12/851
CPCH04L47/24H04W4/20H04W4/40H04W4/46H04W28/021H04W72/0446H04W74/0816H04W74/085H04W72/56
Inventor 冷甦鹏姚彤吴凡陈笑沙
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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