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Receive power priority flooding in mobile ad hoc networks

A self-organizing and network technology, applied in network topology, data exchange network, advanced technology, etc., can solve problems that are not optimal and unsatisfactory

Inactive Publication Date: 2007-01-24
DENSO CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An optimal forwarder in one direction may not be optimal or even satisfactory for packet delivery in the other direction

Method used

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  • Receive power priority flooding in mobile ad hoc networks
  • Receive power priority flooding in mobile ad hoc networks
  • Receive power priority flooding in mobile ad hoc networks

Examples

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Embodiment Construction

[0018] This article proposes an improved method for distributing information in a vehicle-to-vehicle communication network. In this exemplary application, vehicles can send and receive wireless RF transmissions between them, which is an existing technology in the field. The following description is directed to an inter-vehicle communication network, but it is easy to understand that the broader aspects of the present invention are also applicable to other types of mobile ad hoc networks. For example, a suitable environment can be found in the military field.

[0019] In a simple diffusion algorithm, as described above, each vehicle repeats each message at least once. In order to reduce network traffic, only vehicles on the boundary of the transmission range of a given message need to retransmit the message in the network. In other words, vehicles on the boundary of the transmission range are given priority to be sent first; while vehicles within the boundary postpone the retransmi...

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Abstract

An improved method is provided for disseminating information in an ad hoc wireless network. The method includes: receiving an incoming message at a recipient node of the network; scheduling a retransmission of the message, where the schedule time for the retransmission is proportional to a signal strength at which the message was received by the recipient node; and canceling the retransmission of the message when the same message is received from a different node in the network prior to the schedule time for the retransmission. The effect is reduced network traffic on the network with minimized latency.

Description

Invention field [0001] The present invention relates to a mobile ad hoc network, and more specifically, to a routing method that increases transmission reliability and channel capacity while reducing the inherent delay and time under the condition of high-density flooding. competition. technical background [0002] Wireless communication between vehicles is a concept that is of increasing interest among car manufacturers. The possible applications exceed the widely publicized obvious entertainment and Internet connection use; they can potentially improve the safety of vehicles in a way that approaches the reliability and complexity of commercial electronic devices. [0003] Traffic safety organizations such as the Vehicle Safety Communication Association (VSCC), Federal Highway Administration (US DOT FHWA) and ISO have identified high-priority applications, such as traffic signal violation warnings, left turn assist devices, and cooperative forward collision warnings And emergenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/56H04L1/12H04B7/26G08G1/127H04W74/08H04W84/18
CPCG08G1/161H04W84/18H04W40/00H04L45/32
Inventor 约翰·M·贝尔斯特内尔贾森·F·安齐热
Owner DENSO CORP
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