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Network organization method of overlapped multichannels in video on demand system of peer-to-peer network

A video-on-demand and overlapping network technology, applied in transmission systems, two-way working systems, instruments, etc., can solve problems such as unbalanced cache distribution and low cost between channels, and achieve improved cache service capabilities, strong scalability, and improved service effect of ability

Inactive Publication Date: 2009-03-18
HUAZHONG UNIV OF SCI & TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for organizing a multi-channel overlapping network in a peer-to-peer network video-on-demand system, aiming at the unbalanced buffer distribution between channels caused by the unbalanced distribution of nodes in the existing peer-to-peer network video-on-demand system. The constructed multi-channel overlay network has the characteristics of strong scalability, high cache utilization, node load balancing and low cost

Method used

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  • Network organization method of overlapped multichannels in video on demand system of peer-to-peer network
  • Network organization method of overlapped multichannels in video on demand system of peer-to-peer network
  • Network organization method of overlapped multichannels in video on demand system of peer-to-peer network

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example

[0090] Using the multi-channel overlapping network organization method described in the present invention, the laboratory provides a program source server, an index server and 9 ordinary PCs. The hardware configuration of the PC is as follows:

[0091] machine name CPU Memory hard disk network bandwidth source server PIIII2.0G 2G 300G 100M index server PIIII2.0G 2G 40G 100M PC1—9 PIIII 1.7G 256M 40G 10M

[0092] PCs 1-9 are referred to as node 1, node 2...node 9, respectively. When all nodes enter the on-demand system, they can choose to order two different programs A and B. The total playing time of each program is 60 minutes, the video encoding rate is 480kbps, and the program data volume per minute is 3.5M. The number of users who choose to order program A is 2, which are node 1 and node 2, and one node enters the system every 15 minutes. The number of users who choose to order program B is 7, which are nodes 3 to 9, and ...

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Abstract

In the invention, each node executes the following steps: 1) initializing the program channel and its buffer information; 2) adding the program channel according to its buffering information; 3) renewing the idle buffer and the idle number of idle connections; 4) calculating the buffer allocation sheet; 5) according to the buffer allocation sheet, initializing the corresponding service channel and its buffer information; 6) maintaining the data in the buffer; 7) deciding if the playback is over. In the invention, after a program channel is added into a node, according to the idle buffer and the idle connections of the node, a service channel is added, and the data in the buffer is maintained in the running of the node.

Description

technical field [0001] The invention belongs to the field of computer applications, relates to the interdisciplinary field of the combination of peer-to-peer network and streaming media on-demand technology, and specifically relates to a multi-channel overlapping network organization method in a peer-to-peer network video on-demand system. Background technique [0002] In the field of Internet streaming media, in view of the limited service capabilities of the traditional Client-Server model, peer-to-peer network technology has developed rapidly due to its strong scalability, low dependence on servers, and low system cost. Popularity provides a good technical foundation. The streaming media on-demand method based on the peer-to-peer network enables the nodes P to share the existing data with each other without all concentrating on the video server to obtain the data, thereby greatly reducing the burden on the video server and the network. [0003] Currently existing peer-to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/173H04L29/00G06F17/30
Inventor 金海廖小飞王浩程斌
Owner HUAZHONG UNIV OF SCI & TECH
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