A transmission scheduling method to ensure the quality of service of wireless multi-hop network video transmission

A technology of wireless multi-hop network and video transmission, applied in the field of data transmission scheduling, which can guarantee the service quality of real-time video transmission of multiple wireless networks, and can solve the problem of unsatisfactory users, long waiting time, processing capacity of receiving nodes and Issues such as high cache capacity requirements, to achieve the effect of reducing startup delay and buffer requirements

Inactive Publication Date: 2018-08-07
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has high requirements on the processing capability and buffering capability of the receiving node. It needs to reorder the data packets in real time, and at the same time needs to wait for a long time, which is not ideal for users.

Method used

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  • A transmission scheduling method to ensure the quality of service of wireless multi-hop network video transmission
  • A transmission scheduling method to ensure the quality of service of wireless multi-hop network video transmission
  • A transmission scheduling method to ensure the quality of service of wireless multi-hop network video transmission

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Embodiment Construction

[0035] Comply with the above technical solutions, such as Figure 1 to Figure 4 As shown, the present invention proposes a transmission scheduling method that can guarantee the service quality of real-time video transmission over multiple wireless networks. capacity to maximize link application efficiency.

[0036] Basic scheme of the present invention is:

[0037] A transmission scheduling method that guarantees the service quality of real-time video transmission in a wireless multi-hop network. In a wireless multi-hop network, there are multiple communication links between a video sending node and a receiving node. The transcoding processing capability of the relay node on multiple communication links, the communication capability of the link between the sending node and the relay node, and the communication capability of the link between the relay node and the receiving node are allocated, and the allocated The video files are sent to the target node from the multiple com...

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Abstract

The invention discloses a transmission scheduling method for ensuring the service quality of real-time video transmission in a wireless multi-hop network. By dividing the video file according to the transmission and processing capabilities of the multi-hop links in the network, and sending them to the target node from multiple paths in sequence, the ratio of each code stream can be transcoded on each link and arrive in order receiving node. By eliminating the mutual waiting of each code stream on each link to avoid the problem of out-of-order and reordering of data packets at the receiving end in traditional multi-path transmission, effectively reducing the startup delay and buffer requirements of the receiving end, and enabling real-time playback .

Description

technical field [0001] The invention belongs to the technical field of wireless networks, and relates to a data transmission scheduling method, in particular to a transmission scheduling method capable of ensuring the service quality of real-time video transmission of multiple wireless networks. Background technique [0002] With the development of video coding and wireless multi-hop networks, real-time video communication under wireless multi-hop networks has become a development trend. However, due to the heterogeneity between networks and devices, the bandwidth and display capabilities of wireless terminals vary. Therefore, the high-quality code stream on some terminals cannot meet the requirements of other terminal equipment without transcoding. In the video communication in the wireless multi-hop network, the receiver hopes to play the received video uninterrupted and smooth in real time, which puts forward high requirements on the quality of service of the network. B...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L65/80H04L65/75
Inventor 代亮陈婷谢明钰王秉章
Owner CHANGAN UNIV
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