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P2P stream media live broadcasting method capable of preventing flash crowd

A streaming media and direct technology, applied in branch offices to provide special service devices, data exchange details, digital transmission systems, etc., can solve problems such as no instantaneous congestion resolution strategy, impact of video viewing fluency, and increased server response time, etc., to achieve Reduce the start-up time of playback, quickly realize the effect of starting to watch, and solve the problem of instant congestion

Inactive Publication Date: 2011-09-14
GUANGZHOU HKUST FOK YING TUNG RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of users transmit data in bursts at the same time, resulting in the instantaneous superimposition of power peaks, and the system load exceeds the estimate and reaches the warning zone
The danger of this phenomenon is that it may cause the server's response time to increase significantly due to the exhaustion of server resources, and even cause the server to crash.
For service users, instant congestion will cause a substantial increase in waiting time, and the fluency of video viewing will be affected
[0005] After searching, it is found that the current mainstream P2P systems that use the Internet for live streaming media, such as PPLive, QQLive, PPStream and other video live sharing systems, do not have a solution to the instantaneous congestion problem

Method used

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  • P2P stream media live broadcasting method capable of preventing flash crowd
  • P2P stream media live broadcasting method capable of preventing flash crowd
  • P2P stream media live broadcasting method capable of preventing flash crowd

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Embodiment Construction

[0031] As shown in Figure 1, a user submits a joining application to the central server, and the central server quickly assigns the user to a corresponding content distribution server. In order to realize the above-mentioned fast distribution, this method needs the Global Network Positioning System (GNP) invented by Carnegie Mellon University. GNP virtualizes the Internet as an N-dimensional Euclidean space, and each host in the Internet can be regarded as a point in this Euclidean space. If the entire geometric space is regarded as a coordinate system, each point can correspond to a coordinate, and the Euclidean distance between two points is the transmission delay between two hosts in the network.

[0032] The host used by the user will be automatically assigned a coordinate. This coordinate will be automatically carried in the network joining request sent by the user to the central server. After knowing the coordinates of a user host and all content distribution servers, ...

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Abstract

The invention relates to a live broadcasting method capable of preventing flash crowd generally appearing in P2P stream media live broadcasting based on a P2P technology. The invention realizes that users are optimally allocated by a center server based on a global network positioning system and nearest neighbor search by adopting a starting module and directly served by introducing a content distribution server, thereby relieving the phenomenon of flash crowd and realizing that the users rapidly participate in a P2P stream media live broadcasting network. The topological structure of the whole network is enabled to be more reasonable in a way of forming content distribution server subnetworks by adopting a topological generation module. A subnetwork merge module merges the subnetworks byutilizing the residual capacity of the users so that the idle content distribution server exits; and the network is delivered to the center server for management, thereby saving the network resource.In the process of creating and merging the subnetworks, the stream media broadcasting speed is adjusted on host computers of the users through the supplement of a data frame, thereby ensuring the fluency for watching by the users.

Description

technical field [0001] The invention relates to a method for realizing video streaming live broadcast by using P2P technology. The method has the function of preventing the common instantaneous congestion problem in the P2P streaming media live broadcast system. Background technique [0002] P2P (peer-to-peer) technology, or peer-to-peer networking technology, is a technology for directly exchanging data or services between different PC users without going through a relay device. The nodes in the peer-to-peer network have the dual characteristics of client and server, and can serve as users and providers of services at the same time. P2P technology can not only utilize the resources of the server, but also reasonably use the idle resources of the terminal computer. While watching media programs, users are also using the idle resources of their own computers to provide services for other users. Now P2P technology is widely used in Internet media live broadcast. [0003] Wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04L12/58
Inventor 陈双幸田野
Owner GUANGZHOU HKUST FOK YING TUNG RES INST
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