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End-to-end peer video assistance transmission method

A video, end-to-end technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of low throughput and high overhead of cellular networks, and achieve a good video experience, high throughput, and improved utilization. Effect

Active Publication Date: 2016-08-24
TSINGHUA UNIV +1
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  • Description
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AI Technical Summary

Problems solved by technology

A common limitation of these methods is that an arbitration central node is required to regulate other nodes, and most of these methods are only applicable to live broadcast systems
And the cellular network throughput rate is low, and the overhead is high at the same time

Method used

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  • End-to-end peer video assistance transmission method

Examples

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Embodiment Construction

[0020] The invention proposes an end-to-end peer-to-peer video assisted transmission method, which uses a peer-to-peer incentive mechanism to integrate the bandwidth resources of each mobile device on the basis of a hybrid network of a cellular network and a Wi-Fi network. Further detailed description will be made below in conjunction with accompanying drawing:

[0021] The present invention proposes an end-to-end peer-to-peer video assisted transmission method flow as follows figure 1 shown, including the following steps:

[0022] (1) Let the mobile device terminal DE be a node in the interconnected group G' under a Wi-Fi network where it is located. If each node wants to join or exit the group G', it will notify other nodes through UDP broadcast. node; execute step (2) or step (3);

[0023] The specific implementation steps are:

[0024] (1-1) Each DE has a list G initialized to be empty, and the DE monitors the UDP port Port of the Wi-Fi network in real time dis Each ti...

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Abstract

The invention proposes an end-to-end peer video assistance transmission method, and belongs to the technical fields of wireless communication and video processing. The method comprises the steps: notifying other nodes in a UDP broadcast mode if each node wants to join in or quit a group G'; enabling each DE in the same group G' to watch a video through a cellular network, downloading video data from a cellular network of a node with a small load, and transmitting the downloaded video data to a node with a big cellular network load through a Wi-Fi network; dividing a video watching request into a plurality of video downloading request tasks if each DE wants to watch the same video; downloading a plurality of video segment files of the video if one task is built, enabling the DE to transmit a downloading request to other nodes in the same group, and enabling the nodes to assist the downloading and transmission. The method can effectively improve the utilization rate of bandwidth of the whole network, optimizes the resource configuration, reduces the network cost, and saves the energy consumption.

Description

technical field [0001] The invention belongs to the field of wireless communication technology and video processing technology, and in particular relates to an optimization method for realizing video transmission by applying an end-to-end peer-to-peer assisted transmission method based on a hybrid network composed of a cellular network and a Wi-Fi network. Background technique [0002] With the popularity of wireless local area networks and the improvement of cellular mobile network bandwidth, people can watch more and more high-definition videos on mobile devices such as smartphones. Due to the ease of use of mobile devices, the amount of video traffic people watch on mobile devices is growing faster than traditional media. Although the bandwidth of the cellular mobile network is increasing, people's demand for video traffic is growing faster, and the price of the cellular mobile network is relatively expensive compared to the traditional broadband network. In order to mee...

Claims

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Application Information

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IPC IPC(8): H04N21/4363H04N21/845H04N21/643
CPCH04N21/43637H04N21/643H04N21/8456
Inventor 孙立峰王寿唐茗高林黄建伟
Owner TSINGHUA UNIV
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