A Cost Sensitive Network Video Distribution Method
A network video, cost-effective technology, applied in the field of computer networks, to achieve low-cost deployment solutions, eliminate network congestion problems, and ensure the effect of load balancing
Active Publication Date: 2021-05-25
SUN YAT SEN UNIV
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[0004] In summary, the existing streaming media multicast method has limitations in actual use, so it is necessary to improve
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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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The invention discloses a cost-sensitive network video distribution method, which takes into consideration the problem of different bandwidth rental prices between different nodes, constructs a tree-net hybrid coverage network, and maintains two node sets in the system. One is to provide stable And there are strong nodes for a large number of streaming media data transmission services, and the other is ordinary user nodes. These strong nodes and the original server form a tree-shaped main tree, and together with the local area network structure, they form a hybrid topology structure. By minimizing the unit deployment cost, Iteratively calculates the bandwidth requirements of each path, and provides a line purchase plan with lower deployment costs while ensuring the quality of service. The point-to-point network connection is realized between the server and the user through multicast, which improves the efficiency of data transmission and reduces the possibility of congestion in the backbone network. The current multicast algorithm for streaming media data fails to consider the differences in node bandwidth prices and service capabilities, resulting in the problem of uneven allocation 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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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