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Data forwarding method and device

A forwarding method and data technology, applied in the field of communications, can solve problems such as network paralysis and data flooding

Active Publication Date: 2017-11-07
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the process of implementing the present invention, it is found that the existing technology has at least the following problems: Since the interest packets will be continuously broadcast to the neighbor nodes until the data provider corresponding to the interest packets is found, data flooding will be caused and the network will be paralyzed

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  • Data forwarding method and device

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Embodiment Construction

[0041] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] With the explosive growth in the number of mobile terminal equipment, wireless communication technology develops rapidly. As a key business of the future Internet, real-time streaming service has been widely studied in academia and industry. Especially in Vehicle Ad Hoc Networks (VANETs), vehicles can communicate with each other and share data. Among them, the sharing of streaming media data is a key service in this field. Unfortunately, the IP protocol cannot effectively support the transmission efficiency of streaming media in a mobility environment due to frequent changes in the vehicle ad hoc network topology. The information-centric network emerges in a bran...

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Abstract

The invention provides a data forwarding method and device and belongs to the technical field of communication. The method comprises the steps of for any node obtaining an interest packet in VANETs, taking the any node as a forwarding node, and when a local cache of the forwarding node does not store data requested by the interest packet, searching whether a data name of the data is stored in a content preference table of the forwarding node or not; and when the data name is stored in the content preference table, selecting an neighbor assistant node corresponding to the data name in the content preference table from an neighbor assistant node set of the forwarding node, taking the neighbor assistant node as a next hop node of the forwarding node, and forwarding the interest packet to the next hop node by the forwarding node. The neighbor assistant node of the forwarding node can be selected from the establishment-based content preference table for data forwarding and the data is not forwarded in a mode of broadcasting the interest packet, so the network crash resulting from data flooding can be avoided.

Description

technical field [0001] The present invention relates to the technical field of communications, and more specifically, to a data forwarding method and device. Background technique [0002] With the rapid increase in the number of mobile terminal equipment, wireless communication technology develops rapidly. Real-time streaming service, as a key business of the future Internet, has been extensively studied in both academia and industry, especially in Vehicle Ad Hoc Networks (VANETs). In the vehicle ad hoc network, vehicles can communicate with each other and share data. Among them, the sharing of streaming media data is a key service of the vehicle ad hoc network. However, the IP protocol cannot effectively support the transmission efficiency of streaming media in a mobility environment due to frequent changes in the vehicle ad hoc network topology. The information-centric network emerges in a brand-new paradigm, which replaces the traditional IP address with content as a n...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/733H04L29/08H04L45/122
CPCH04L45/20H04L45/70H04L67/12
Inventor 许长桥关建峰刘杨王目曹腾飞陈星延
Owner BEIJING UNIV OF POSTS & TELECOMM