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A node in P2P stream media and a method for optimizing a neighbor node table of the node

A neighbor node and streaming media technology, applied in the field of computer networks, can solve problems such as lack of network adaptability of neighbor nodes, instability of neighbor node cooperation ability, and influence on the overall performance of P2P networks, etc., to achieve simple and efficient matrix update and state prediction methods. The effect of improving data interaction performance and improving accuracy

Inactive Publication Date: 2014-02-19
INST OF ACOUSTICS CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, the neighbor nodes selected by each node in the P2P system when forming its neighbor node table lack the adaptability to the actual network, and the cooperative ability of the selected neighbor nodes is unstable, which ultimately affects the overall performance of the P2P network, especially in the system. When the middle node moves frequently

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  • A node in P2P stream media and a method for optimizing a neighbor node table of the node
  • A node in P2P stream media and a method for optimizing a neighbor node table of the node
  • A node in P2P stream media and a method for optimizing a neighbor node table of the node

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Embodiment Construction

[0046] The organization and maintenance of neighbor nodes in a P2P streaming media system of the present invention and the node online behavior prediction method based on it will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] The invention provides an organization maintenance of neighbor nodes in a P2P streaming media system and a node online behavior prediction method based on the same. Among them, in the organization and maintenance method of neighbor nodes, each node maintains the nodes that have a good online status association relationship with itself and have better network delay and bandwidth conditions with itself to form a neighbor node table by acquiring and learning the behavior patterns of other nodes. , including the following steps:

[0048] 1) Node online status information record

[0049] The time of each node in the system is synchronized through measures such as NTP service, so that each node use...

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Abstract

The invention provides a node in P2P stream media and a method for optimizing a neighbor node table of the node. The method comprises recoding historical online status information of a first node, historical online status information of all correlative nodes, and network delay information and transmission bandwidth information between all the nodes and the first node by using the first node; obtaining all information recorded in the last step when the first node is online and calculating comprehensive availability values between the first node and all the correlative nodes in order to obtain a comprehensive availability value sequence; selecting large-value [gamma] nodes from the sequence as optimum neighbor nodes of the first nodes; replacing current neighbor nodes in the neighbor node table of the first node with the optimum neighbor nodes, wherein the first node is any node in a P2P network, the correlative nodes are a plurality of historical neighbor nodes with relatively high comprehensive availability during the time quantum between the time when the first node is online at the first time and current time, and current neighbor nodes stored in the neighbor node table at the current online time of the first node.

Description

technical field [0001] The invention relates to the technical field of computer network, in particular, the invention relates to a node in P2P streaming media and a method for optimizing the node neighbor node table. Background technique [0002] The utilization of user behavior by the current streaming media system mainly focuses on the analysis of the statistical characteristics of the node group, including the statistical fitting of parameters such as the number of online nodes, channel / movie popularity, node joining interval, session / online / offline duration, and on-demand jumps. , Analysis of the influence relationship among various parameters, and system optimization on this basis. There are also a small number of literature and patents related to the measurement of the behavior correlation between nodes in a short period of time, the correlation of availability between nodes and its application. However, there are currently very few studies on the long-term scale from...

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Application Information

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IPC IPC(8): H04L29/08
Inventor 尤佳莉苏杭王劲林郑鹏飞李晓林宋军
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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