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Construction Method of Topological Structure of Peer-to-Peer Network Live Streaming System Based on Clustering

A technology of topology structure and construction method, which is applied in the field of communication network, can solve the problems of network bandwidth utilization efficiency, complex system topology structure, and different node stability that affect user start-up delay, video playback continuity, etc., and achieve reduced calculation and transmission efficiency High, reduce the effect of playback delay

Inactive Publication Date: 2016-08-17
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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Problems solved by technology

Due to the large number of nodes in the streaming media live broadcast system, the bandwidth of nodes is not the same, the stability of each node is also different, and the joining and exiting of nodes are random, so the construction of the system topology is relatively complicated, and its construction effect will affect the user's startup delay , the continuity of video playback and the efficiency of network bandwidth usage

Method used

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  • Construction Method of Topological Structure of Peer-to-Peer Network Live Streaming System Based on Clustering
  • Construction Method of Topological Structure of Peer-to-Peer Network Live Streaming System Based on Clustering
  • Construction Method of Topological Structure of Peer-to-Peer Network Live Streaming System Based on Clustering

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Embodiment Construction

[0025] In order to make the present invention easier to understand, the present invention will be further described in conjunction with the accompanying drawings, but the implementation in the accompanying drawings does not constitute any limitation to the present invention.

[0026] Such as figure 1 , 4As shown, the workflow flow chart of clustering is given.

[0027] In the present invention, it is assumed that there is only one streaming media server, but the absence of this assumption does not affect the core idea of ​​the present invention. The specific implementation steps are as follows:

[0028] Step 1: Variable initialization.

[0029] γ = ( max v ∈ R d Sv ) * ( | R | + 1 ...

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Abstract

A method for constructing the topology of a peer-to-peer network streaming media live broadcast system based on clustering. First, all nodes in the system are clustered at the initial stage. Secondly, after the clustering is completed, the topology structure inside the cluster is constructed. Finally, there are two main aspects to construct the topology structure between clusters: on the one hand, construct a virtual network and perform topology construction; on the other hand, construct the topology of inter-cluster nodes in the actual network. The invention balances the transmission of streaming media data blocks in the peer-to-peer network streaming media live broadcast system between bandwidth and delay, reduces the accumulated delay in the network, and makes the maximum Playback lag reduced.

Description

technical field [0001] The invention relates to the field of communication networks, in particular to the problem of the topological structure of a peer-to-peer network streaming media live broadcast system. Background technique [0002] With the development of the integration of the three networks, more and more services are carried by the broadcasting network and the Internet. In addition, the streaming media service has the characteristics of high bandwidth and long duration. With the increase of the number of users, in the traditional C / S mode, The bandwidth of the server will be consumed quickly, resulting in unsmooth video playback and affecting the development of network services. [0003] In order to solve the above-mentioned problems, people have proposed an IP multicast (IP Multicast) mode. IP multicast is used by the IP network to replicate and forward data at the fork of the routing tree, without the need for the server to send multiple copies, thereby reducing ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06
Inventor 高随祥杨文国王慎娜赵彤姜志鹏王蕊戴龙飞焦成文
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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