Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-adaptive media access control method for car networking

A medium access control and self-adaptive technology, applied in the field of Internet of Vehicles, can solve the problems of complex stability, paralysis, and deterioration of Internet of Vehicles performance of clustering algorithms, so as to improve the success rate of message reception, increase network capacity, and ensure real-time reliable transmission. Effect

Active Publication Date: 2016-11-23
JIANGSU DIGITAL DNA TECH CO LTD
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A media access control method based on contention-free clustering has improved performance, but its clustering algorithm is too complex and the stability of the cluster is poor
[0006] The existing medium access control method, the performance of message transmission is acceptable when the vehicle density is relatively low, that is, the traffic is not very congested
However, when the traffic is congested or the vehicle density is relatively high, the performance of the Internet of Vehicles will deteriorate sharply, or even be paralyzed. Therefore, the present invention aims to provide an adaptive medium access control method. When the vehicle density is high still perform well

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-adaptive media access control method for car networking
  • Self-adaptive media access control method for car networking
  • Self-adaptive media access control method for car networking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0037] Such as figure 1 As shown, the adaptive media access control method for the Internet of Vehicles in the embodiment of the present invention includes the following steps:

[0038] First, in order to overcome the disadvantages caused by reducing the generation frequency and transmission power of beacon messages, the present invention controls the network load by reducing the message transmission time. Since the DSRC (Dedicated Short Range Communications, dedicated short-range communication technology) standard can use multi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a self-adaptive media access control method for car networking. The method comprises the steps that a road is intelligently segmented to form multiple road segments; segment head selection is carried out on each road segment; a self-adaptive time slot allocation plan is determined according to the car density on a road. The network capacity is increased, network congestion is lowered, information transmission delay is lowered, the information receiving success rate is improved, and real-time reliable transmission of safe information is achieved.

Description

technical field [0001] The invention relates to the technical field of the Internet of Vehicles, in particular to an adaptive media access control method for the Internet of Vehicles. Background technique [0002] The Internet of vehicles is an important part of the intelligent transportation system, in which each vehicle is equipped with an on-board unit (On-boardUnit, OBU) and roadside units (Roadside Units, RSU) are set on the road. Vehicle-to-Vehicle (V2V) communication and vehicle-to-infrastructure communication can be realized through OBUs and RSUs. [0003] The most important message transmitted in the Internet of Vehicles is the safety message, which is further divided into beacon messages and emergency messages. Beacon messages refer to vehicle status information sent periodically, such as vehicle speed, acceleration, direction, location, etc. Emergency message means that when an emergency event (vehicle changing lanes, road congestion, traffic accident, etc.) occ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W72/04
CPCH04W28/0289H04W72/0446
Inventor 刘水香史杰于明鹭
Owner JIANGSU DIGITAL DNA TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com