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Multi-code rate dispatching method in peer-to-peer live broadcast system

A scheduling method and multi-bit rate technology, applied in the transmission system, pulse modulation TV signal transmission, electrical components, etc., can solve problems such as network environment differences, and achieve the effect of saving server bandwidth

Inactive Publication Date: 2009-10-21
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a multi-bit-rate scheduling method in a peer-to-peer live broadcast system, which can solve the adaptability problem caused by the difference of network environment

Method used

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  • Multi-code rate dispatching method in peer-to-peer live broadcast system
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  • Multi-code rate dispatching method in peer-to-peer live broadcast system

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Experimental program
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example

[0070] The configuration of the whole system is shown in Table 1, and set V=10, W=40, T=25, U=X=5;

[0071] Table 1 Test instance hardware configuration

[0072] machine (quantity)

CPU

Memory

operating system

network card

Registration Server(1)

PIV 2.0G

512M

Win2003

Wired 100M

broadcast source server(1)

PIV 2.0G

512M

Win2003

Wired 100M

Wired Desktop(4)

Celeron 2.0G

512M

Win XP

Wired 100M

wireless router(1)

N / A

N / A

N / A

Wireless 11M

notebook(3)

PIV 1.73G

256M

Win XP

Wireless 11M

Handheld PC(2)

SC32442300M

128M / 64M

WM 5.0

Wireless 11M

[0073] The program source provides three programs, as shown in Table 2.

[0074] Table 2 Three different programs

[0075]

[0076] Figure 5 (a) shows how the buffer fullness changes under two different mechanisms. For a single bit rate, there is only one video st...

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Abstract

The invention discloses a multi-code rate dispatching method in a peer-to-peer live broadcast system, which comprises the following steps that: (1) a broadcast source codes a video source into a plurality of code rates, and registers the address and code rate number N of the video source to a server; (2) a node is added into one channel of the server to acquire the address and code rate number N of the channel, and a self buffer area of the node is set according to the code rate number; (3) the node automatically or manually selects one code rate m from the N code rates and adds the code rate m into the channel to watch programs; (4) according to the filling condition of the buffer area of the self current code rate, the node requires a neighbor node of the current code rate for data in a network and dispatches the data of the current code rate; and (5) at the same time of dispatching the data, the node detects the buffer condition of the current code rate as the basis for switching the code rates.

Description

technical field [0001] The invention belongs to the field of computer applications, and in particular relates to a multi-rate scheduling method MrSM (Muliti-rate Schedule Mechanism) in a peer-to-peer live broadcast system. The method is particularly suitable for network environments with relatively large differences in network bandwidth and client computing capabilities. Background technique [0002] With the continuous mature development and wide application of peer-to-peer computing technology, the peer-to-peer network streaming media live broadcast system has also made great progress. The peer-to-peer network streaming media live broadcast system solves the problem that the traditional live broadcast system has too high requirements on the bandwidth and server performance of the server-side network, and changes the centralized mode of client-server that is mainly used in the traditional distributed multimedia system. However, in today's popular peer-to-peer network stream...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04L29/08
Inventor 金海蒋文斌廖小飞袁志廖光贤李海翔张帆
Owner HUAZHONG UNIV OF SCI & TECH
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