Cost-sensitive network video distribution method

A technology of network video, cost, applied in the field of computer network

Active Publication Date: 2018-11-16
SUN YAT SEN UNIV
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Problems solved by technology

[0004] In summary, the existing streaming media multicast meth

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  • Cost-sensitive network video distribution method

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[0011] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0012] The basic idea of ​​the present invention is: taking into consideration the problem of different bandwidth rental prices between different nodes in real life, constructing a tree-net hybrid overlay network, maintaining two node sets in the system, one is to provide stable and large-scale traffic A strong node for media data transmission services, and the other is an ordinary user node. These strong nodes and the original server form a tree-shaped main tree, which together with the local area network structure constitutes a hybrid topology. By minimizing the unit deployment cost, iteratively...

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Abstract

The invention discloses a cost-sensitive network video distribution method characterized by taking account of different bandwidth rental prices between different nodes; constructing a tree-net hybridoverlay network; maintaining two node sets, in a system, including a strong node set for providing stable and a large amount of streaming media data transmission service, and a common user node set; forming a tree-shaped main tree by the strong nodes and an original server; forming a hybrid topological structure by the tree-shaped main tree and a local net-shaped structure; and by minimizing the unit deployment cost and iteratively calculating the bandwidth requirement of each path, providing a low-cost line purchase solution when the quality of service is guaranteed. The method achieves a peer-to-peer network connection between the server and the user by means of multicast, improves data transmission efficiency, reduces the possibility of congestion in a backbone network, and solves the problem that a current streaming media data multicast algorithm fails to consider the difference in node bandwidth price and service capability and thus results in uneven distribution of system resources.

Description

technical field [0001] The invention belongs to the field of computer networks, and relates to a cost-sensitive network video distribution method, and more specifically, relates to a video resource multicast method that incorporates differences in node bandwidth prices and service capabilities into constraints. Background technique [0002] Streaming media distribution technology refers to the media form that transmits audio, video and multimedia files in the network in a streaming manner. Compared with the network playback form watched after downloading, the typical feature of streaming media is to put continuous streaming media resources on the network server, and users can use them while downloading without waiting for the entire file to be downloaded. Multicast transmission refers to the establishment of a point-to-multipoint network connection between the sender and each receiver. In the case of providing the same content for multiple users, the problem of multiple sto...

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Application Information

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IPC IPC(8): H04N21/647H04N21/6405H04N21/61
CPCH04N21/61H04N21/6405H04N21/64723H04N21/64738
Inventor 刘宁刘畅陈志鹏
Owner SUN YAT SEN UNIV
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