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Hybrid data scheduling method for P2P (peer to peer) systems

A technology of mixing data and scheduling methods, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of data blocks becoming useless, bandwidth waste, and not taking into account the limitation of transmission time limit, etc., to achieve smooth playback, The effect of increasing download speed

Inactive Publication Date: 2015-04-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Exceeding the deadline, this data block will become useless and will be discarded, which causes a waste of bandwidth and cannot meet the needs of playback
Since the BitTorrent protocol is used for file sharing, it does not take into account the limitation of the transmission time limit

Method used

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  • Hybrid data scheduling method for P2P (peer to peer) systems
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  • Hybrid data scheduling method for P2P (peer to peer) systems

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0023] The method propo...

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Abstract

The invention discloses a hybrid data scheduling method for P2P (peer to peer) systems and relates to the technical field of broadcasting application devices or methods directly related to broadcast information or broadcast time and space. According to the method, a required data window in the P2P video-on-demand system is divided into a playing window, an emergency window and a common window, and nodes in the P2P video-on-demand system can acquire data from a film source server and can also share data with other nodes; meanwhile, a BitTorrent protocol is introduced to a streaming media video-on-demand service, and the nodes communicate with other nodes through the modified BitTorrent protocol. The BitTorrent protocol has the priority of downloading fewest data blocks, thus distribution of the data in a whole network is improved; data transmission with limited playing time is not supported. According to the method, emergency data is downloaded prior through a sliding window. The method has the advantages that downloading speed is increased and the P2P video-on-demand system plays more smoothly.

Description

technical field [0001] The present invention relates to the technical field of a broadcast application device or method directly related to broadcast information or broadcast time and space, and in particular to a P2P system hybrid data scheduling method. Background technique [0002] Combining P2P technology with streaming media applications is one of the current research hotspots. The biggest advantage of P2P systems is that users can effectively use resources in the network, which include data resources, bandwidth resources and computer resources. So this makes the P2P system hardly have the bottleneck of the original CS mode, and has good scalability. In the P2P model, each node (peer) plays two roles at the same time. It is both a client and a server. As a client, it can query and request the required services from other nodes, and as a server, it can provide services to other nodes. [0003] Users share files using the BitTorrent protocol, greatly improving download s...

Claims

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Application Information

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IPC IPC(8): H04N21/438H04N21/643H04N21/258
CPCH04N21/4385H04N21/4438H04N21/643
Inventor 邢建川段翰聪张奎董科廷王帅飞王翔
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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