Opportunity network data distribution method and opportunity network with data distribution function

Abstract

The invention provides an opportunity network data distribution method comprising the steps of detecting the community where each node is located and determining whether a copying mode or a forwarding mode is adopted for data distribution based on whether a transfer node is in a target community, wherein the transfer node is a node which carries to-be-transferred data and is about to forward the data to other nodes. In addition, the invention provides an opportunity network with a data distribution function. The opportunity network comprises multiple nodes, of which each includes a community detection unit used for detecting the community where the node is located, and a data distribution unit used for determining whether a copying mode or a forwarding mode is adopted to distribute to-be-transferred data based on whether the node is in a target community. According to the opportunity network data distribution method and the opportunity network with a data distribution function provided by the invention, the number of copies can be controlled, and high data forwarding efficiency is achieved.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to an opportunistic network data distribution method and an opportunistic network with data distribution function. Background technique [0002] In opportunistic networks, commonly used data distribution schemes mainly include flooding data distribution schemes and direct transmission data distribution schemes. [0003] The main idea of ​​the data distribution scheme in the form of flooding is: the source node first sends a copy of the data to each neighboring node through the network, and each neighboring node transmits the copy of the data to each of its neighbors,..., This continues until the data is transmitted to the destination node. However, data distribution in the form of flooding will generate a large number of copies, occupying a large amount of network resources, and the network resources in the opportunistic network are originally extremely limited, so the ...

AI Technical Summary

Problems solved by technology

Although this scheme reduces the number of replicas in the network, since the nodes forward the data to the destination node only when they meet the destination node, the delay of data transmission in the opportunistic network is greatly increased, and the data forwarding efficiency is low.

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