Vehicle-mounted network broadcasting method on expressway based on real-time successful broadcasting rate and distance

A vehicle-mounted network and expressway technology, applied in the field of wireless networks, can solve problems such as poor effect and low broadcast reliability, and achieve the effects of suppressing broadcast storms, improving broadcast reliability, and high broadcast reliability

Active Publication Date: 2021-09-03
新昌县益旭龙机械科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the broadcasting schemes in the vehicle ad hoc network can be divided into probability-based broadcasting schemes, delay-based broadcasting schemes, location-based broadcasting schemes, cluster-based broadcasting schemes and hybrid broadcasting schemes, but most of the existing broadcasting schemes The solution or broadcast storm suppression effect is not good, or the broadcast reliability is not high

Method used

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  • Vehicle-mounted network broadcasting method on expressway based on real-time successful broadcasting rate and distance
  • Vehicle-mounted network broadcasting method on expressway based on real-time successful broadcasting rate and distance
  • Vehicle-mounted network broadcasting method on expressway based on real-time successful broadcasting rate and distance

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example

[0117] Such as Figure 5 As shown, it is the example format of the broadcast packet sending and receiving record table in the present invention, which specifically includes:

[0118] ①IP address(current node:j): Indicates the IP address of the current node j;

[0119] ② The broadcast packets received or forwarded by the current node j, specifically:

[0120] IP address(source node:i): Indicates the IP address of source node i;

[0121] Sequence number x(source from node i): Indicates that the sequence number of the broadcast packet is z, and the broadcast packet is sent from the source node i; T ju T ju The initial value is 10s.

[0122] Be received: Indicates whether the broadcast packet has been received, Yes means it has been received, No means it has not been received;

[0123] Be broadcasted: Indicates whether the broadcast packet has been broadcasted, Yes means it has been broadcasted, No means it has not been broadcasted;

[0124] Be successfully broadcasted: Indi...

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Abstract

The invention discloses a highway vehicle network broadcast algorithm based on real-time successful broadcast rate and distance. With each vehicle as a node in the broadcast, the broadcast communication between nodes calculates the forwarding probability of the current node according to the real-time successful broadcast rate of the current node and the distance between the current node and the previous hop node, and then sends broadcast packets according to the forwarding probability , and update the broadcast packet sending and receiving record table, the sent broadcast packet record table and the successfully broadcast packet record table in real time during the mutual broadcast communication process between any two nodes. The present invention can effectively suppress broadcast grouping, improve broadcast reliability, and has short average transmission time delay, and is a vehicle-mounted ad hoc network broadcast algorithm that is better applicable to expressway scenes.

Description

technical field [0001] The invention belongs to a broadcasting method in the field of wireless networks, and in particular relates to a broadcasting method for a vehicle-mounted self-organizing network on a highway based on real-time successful broadcasting rate and distance. Background technique [0002] Vehicle ad hoc network is a special mobile Ad Hoc network, which is a wireless network composed of a group of vehicle nodes with wireless transceiver functions. Nodes in the network function as hosts and routers. When the destination node is not within the coverage of the source node, broadcast packets can be transmitted to the destination node through multi-hop communication. Vehicle self-organizing network not only has the characteristics of mobile Ad Hoc network without central control node, automatic networking, multi-hop routing, etc., but also has its own unique characteristics, such as: network topology changes quickly, vehicle movement trajectory has certain predict...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/46H04W40/18H04L12/761H04L12/733H04W4/021H04L45/122H04L45/16
CPCH04L45/16H04W4/46H04W40/18H04L45/126H04W4/021H04W4/023
Inventor 苏雪余燕平朱晨欢曹琪超邓毅晨
Owner 新昌县益旭龙机械科技有限公司
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