Self-adaption data distributing method based on node density distribution in vehicle-mounted ad hoc network

A vehicle-mounted ad hoc network and node density technology, applied in the field of ad hoc networks, can solve problems such as the reduction of performance indicators such as transmission success rate and average delay, and achieve the effect of reducing the number of copies and high performance

Inactive Publication Date: 2012-02-15
HENAN UNIVERSITY OF TECHNOLOGY
View PDF3 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Although the distribution and waiting routing protocol can significantly reduce resource consumption, due to the limitation of the number of "relay" nod

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-adaption data distributing method based on node density distribution in vehicle-mounted ad hoc network
  • Self-adaption data distributing method based on node density distribution in vehicle-mounted ad hoc network
  • Self-adaption data distributing method based on node density distribution in vehicle-mounted ad hoc network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The flow chart of the adaptive data distribution method based on node density distribution in the vehicle ad hoc network of the present invention is as follows figure 1 As shown, the geographic space covered by the network is divided into hotspots and non-hotspots according to the density of nodes in the vehicular ad hoc network; when nodes meet and need to send a message, the current position of the node is first judged, and when it is inside the hotspot, the current neighbor node Find the node with the largest node degree to forward the message; when it is in a non-hot spot area, use the infectious routing protocol data distribution mechanism to generate a copy of the message and forward the message directly. In order to further reduce the number of redundant message copies to reduce network resource consumption, non-hot spots are divided into far away hot spots and adjacent hot spots. When nodes are far away from hot spots, an infectious routing protocol data distribut...

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 relates to a self-adaption data distributing method based on node density distribution in a vehicle-mounted ad hoc network. The method comprises the following steps: when nodes in the vehicle-mounted ad hoc network come across and a message is needed to be sent, judging the nodes are located in a hotspot area or non-hotspot area according to present positions of the nodes; if being in the hotspot area, selecting a node with a maximum node degree from present adjacent nodes to forward the message; if being in the non-hotspot area, adopting an infective routing protocol data distributing system to generate a message copy and directly forwarding the message; using a distribution type density sensing algorithm to quickly acquire space distribution information of the network nodes and hotspot area; using a hop limit function based on graph theory and complex network theory to estimate an average distance for forwarding the message to the hotspot area; and performing dynamic hop limit on the message by using priori knowledge of node space distribution, thereby realizing dynamic adjustment of a message forwarding mode, acquiring high performance close to the infective routing and obviously reducing quantity of redundancy message copy.

Description

Technical field [0001] The invention belongs to the technical field of ad hoc networks, and in particular is an adaptive data distribution method based on node density distribution for vehicle ad hoc networks. Background technique [0002] Vehicle Ad-hoc Networks (Vehicular Ad-hoc Networks, referred to as VANET) is a self-organizing heterogeneous wireless multi-hop network composed of wireless nodes (referred to as nodes in this article) installed on vehicles and Road Side Unit (RSU for short) , The communication mode includes self-organizing multi-hop communication between nodes and communication between nodes and RSU. The vehicle-mounted ad hoc network is a special application of wireless sensor network and wireless ad hoc network in the field of intelligent transportation. It has obvious new features: large network scale, fast node movement speed, uneven spatial distribution of nodes, node movement trajectories are restricted by roads, nodes have strong computing power and su...

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
IPC IPC(8): H04L12/56H04L29/08H04W40/20H04W84/18
Inventor 杨卫东刘伎昭张德贤王珂孙利民沈策李攀冯琳琳王献荣李琳
Owner HENAN UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap