Method for optimal placement of unpopular resource indexes in peer-to-peer network

A peer-to-peer network and resource indexing technology, which is applied in the field of network search optimization and resource placement optimization, and can solve the problems that nodes cannot carry cache and affect network scalability.

Inactive Publication Date: 2012-03-14
GRADUATE SCHOOL OF THE CHINESE ACAD OF SCI GSCAS
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  • Abstract
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  • Claims
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Problems solved by technology

In a large-scale network, especially in a dense network, nodes may not be able to carry too much cache, which affects the scalability of the network

Method used

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  • Method for optimal placement of unpopular resource indexes in peer-to-peer network
  • Method for optimal placement of unpopular resource indexes in peer-to-peer network
  • Method for optimal placement of unpopular resource indexes in peer-to-peer network

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Embodiment Construction

[0046] A peer-to-peer network is composed of a group of terminal devices connected to the network. These terminal devices can be general household desktop computers, portable notebook computers, small servers with better performance, or servers in a small area. Each node in the peer-to-peer network. Each device has the function of data routing, and records its own resource visits, its online time and other information at the same time. Each device sends information to surrounding nodes when the network is running, including information about the time when the node is online and offline, identity information, and index placement request information. Each node selects a specific node for index placement based on this information.

[0047] Index placement can improve the search success rate of resources in the peer-to-peer network and reduce the generation of redundant information during information search. Such as figure 2 As shown, node A first sends out a search for a resource,...

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Abstract

The invention relates to a method for optimal placement of unpopular resource indexes in a peer-to-peer network. According to the method, mathematical abstraction is performed on node selection of buffer indexes and balanced placement of the indexes in the peer-to-peer network, and a model for resource optimal placement is provided in a mathematical angle, so that the success rate of searching unpopular files in the peer-to-peer network is improved, the expenditure of the buffer indexes is lowered, and the total expenditure of the whole network is lowered to make the network have higher extensibility.

Description

Technical field [0001] The invention relates to the field of network communication, in particular to the problems of peer-to-peer network search optimization and resource placement optimization. Background technique [0002] Peer-to-peer network is the core concept of the next-generation network, which is different from the traditional central server and client mode. In a peer-to-peer network, each node not only obtains the resources it wants from the remaining nodes, but also provides the remaining nodes with their own shared resources. In the implementation of peer-to-peer networks, since there is no central server, how to quickly locate various resources and services is a key technology. [0003] Current research on the rapid search of peer-to-peer networks divides peer-to-peer networks into structured peer-to-peer networks and unstructured peer-to-peer networks. Compared with the structured peer-to-peer network using the Distributed Hash Table, the unstructured peer-to-peer n...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/24
Inventor 高随祥杨文国吴鸽鹏邓浩江郭田德安然赵彤孙静姜志鹏王慎娜
Owner GRADUATE SCHOOL OF THE CHINESE ACAD OF SCI GSCAS
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