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Highway in-vehicle self-organizing network broadcasting algorithm based on average speed

An in-vehicle self-organization and average speed technology, which can be used in location-based services, specific environment-based services, and data exchange networks. It can solve the problems of unreasonable forwarding nodes, reduce broadcast storms, improve broadcast reliability, The effect of suppressing broadcast storms

Active Publication Date: 2019-03-15
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the background technology, the purpose of the present invention is to provide an average speed-based broadcast method (ASBB: Average Speed ​​Based Broadcast algorithm) for the highway-oriented scene in the vehicular ad hoc network, which can solve the problem of SAPF method selection and forwarding The problem of unreasonable nodes can effectively suppress broadcast storms, adapt to dynamic network topologies and provide certain reliability

Method used

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  • Highway in-vehicle self-organizing network broadcasting algorithm based on average speed
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  • Highway in-vehicle self-organizing network broadcasting algorithm based on average speed

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Embodiment Construction

[0071] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0072] Such as figure 1 As shown, a broadcast flow chart of the present invention specifically includes the following steps:

[0073] Step 100, the source node sends a broadcast packet: assuming that node i is any source node that generates a broadcast packet in the network, and the source node i generates a broadcast packet with a sequence number of z, first create a corresponding entry for the broadcast packet in the broadcast packet reception record table , set the timeout T2, and record that the broadcast packet has been received under this entry;

[0074] Then encapsulate the IP address of the source node i, the serial number of the broadcast packet, the IP address of the current node i, the broadcast destination IP address, the speed and position information of the current node i in the broadcast packet header, and then send the broadcas...

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Abstract

The present invention discloses a highway in-vehicle self-organizing network broadcast algorithm based on an average speed. Each vehicle is used as a node in broadcast, a forwarding probability is calculated according to an average speed of a current node and a neighbor node in broadcast communication between nodes, then a broadcast packet is transmitted according to the forwarding probability, and a neighbor information table is updated in real time during mutual broadcast communication between any two nodes. The present invention can effectively suppress a broadcast storm, has high reliability, and has a short information mean transit delay. The algorithm of the present invention is an in-vehicle self-organizing network broadcast algorithm that can be well applied to highway scenes.

Description

technical field [0001] The invention belongs to a broadcasting algorithm in the field of wireless communication, and in particular relates to a broadcasting algorithm based on an average speed vehicle-mounted self-organizing network on a highway. 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 predictability, No energy and equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/20H04W40/24H04L12/761H04W4/02H04W4/46H04L45/16
CPCH04L45/16H04W40/20H04W40/248H04W4/025H04W4/027H04W4/46
Inventor 苏雪余燕平曹琪超朱晨欢邓毅晨
Owner ZHEJIANG GONGSHANG UNIVERSITY