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Routing selection method based on node property in social transportation in opportunistic network

A node and network technology, applied in the field of access strategies based on the nature of nodes, can solve problems such as inability to achieve timely access, shorten delay time, and high data delay, so as to avoid unnecessary access, improve routing efficiency, and save network resources.

Active Publication Date: 2013-07-17
重庆信科设计有限公司
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  • Description
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: for the routing technology based on exchange in the existing opportunistic network, by periodically visiting all nodes in the network, it is impossible to timely access some nodes with high data generation rate, resulting in a large amount of data high latency
We propose a method based on the information generation rate and location of nodes in the network, and adopt different access strategies for different nodes, which can shorten the total delay time of all nodes in the network and avoid high delays caused by nodes with high data generation rates under the same access method And the waste of resources caused by nodes with low data generation rate, solve the defects of existing routing technology

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  • Routing selection method based on node property in social transportation in opportunistic network
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  • Routing selection method based on node property in social transportation in opportunistic network

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Embodiment Construction

[0020] The implementation of the present invention will be specifically described below in conjunction with the accompanying drawings and specific examples.

[0021] Such as figure 1 Shown is the flow chart of the access policy routing algorithm based on the properties of nodes in social traffic in opportunistic networks. Including the following three main steps, node diversity; area division; path selection.

[0022] Such as figure 2 Shown is a schematic diagram of the node diversity process in the network. The location and information generation rate of each node in the network may be different. For some nodes with a small amount of information, it will take up more time for data transmission, which will obviously reduce the overall performance of the system. We propose to make the ferry target different types of nodes Adopt a different access strategy.

[0023] The nodes are divided according to the data generation rate of the nodes, so that the data generation rate o...

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Abstract

The invention discloses a routing selection method based on node property in social transportation in an opportunistic network. The method comprises the following steps of: diversifying nodes with different data generating rates in a network in specific to all nodes which periodically access the network in the conventional opportunistic network routing technology; zoning nodes in a topological diagram according to different positions of the nodes in each set; and determining a path access strategy of a relay node according to different data generating rates and the zonal positions of the nodes. In the method, different access strategies are adopted for different nodes based on different properties of the nodes in the network, so that the total delay time of all nodes in the network can beshortened, high time delay of nodes with high data generating rates and resource waste caused by nodes with low data generating rate due to the adoption of the same access method are avoided, and thedefects of the conventional routing technology are overcome.

Description

technical field [0001] The invention relates to routing technology in opportunistic networks, in particular to an access strategy based on node properties. Background technique [0002] Opportunistic Networks (Opportunistic Networks) is a research hotspot in the field of wireless networks in recent years. Due to the network's characteristics of large information delay, frequent link disconnection, and limited storage capacity and energy of nodes, traditional routing protocols are not suitable for this network. Because it does not obey the assumption that there is a reliable path between the end-to-end of the traditional wireless network, the opportunistic network adopts a communication mode that is completely different from the traditional network. It does not require a complete path between the source node and the destination node. The communication opportunity formed by node movement transmits messages hop by hop, and realizes a self-organizing network that is tolerant of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04W40/02
Inventor 刘期烈庞想谢青李云黄翠廖薪棋
Owner 重庆信科设计有限公司
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