Time delay sensing cloud and fog cooperation video distribution method

A video and time-delay technology, applied in the field of cloud-mist collaborative video distribution, to achieve the effect of reducing video playback delay and maximizing long-term rewards

Active Publication Date: 2021-06-01
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared to the ever-increasing video traffic, the limited storage and computing capabilities

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  • Time delay sensing cloud and fog cooperation video distribution method
  • Time delay sensing cloud and fog cooperation video distribution method
  • Time delay sensing cloud and fog cooperation video distribution method

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Embodiment Construction

[0081] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0082] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a time delay sensing cloud and fog cooperation video distribution method, and belongs to the technical field of communication, in particular to the technical field of video transmission under a wireless network. Aiming at a contradictory relationship between a strict time delay requirement and a limited network resource during transmission of a video in a fog wireless access network, the method comprises the following steps: firstly, providing caching, transcoding and transmission for video contents by adopting a cloud and fog cooperation mode by establishing a time delay sensing video request scheduling model; and furthermore, on the premise of considering the length of a user playing buffer area, utilizing an Actor-Critic deep reinforcement learning algorithm to solve a cascading effect caused by video request scheduling and resource allocation decision, so that long-term rewards of the user are maximized, and video playing delay is reduced. The method effectively reduces the time delay when the user watches the video, improves the cache hit rate, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a delay-aware cloud-fog cooperative video distribution method. Background technique [0002] With the development of multimedia smart terminals, video will be the main business in the future. According to Cisco's forecast, mobile video traffic will account for 82% of all network traffic by 2022. Due to different mobile devices, network conditions, and user preferences, videos need to be transcoded into different formats, which is a computationally intensive task. The powerful centralized cloud caching and computing capabilities in the Cloud Radio Access Network (C-RAN) can provide users with reliable and stable transcoding services. However, because the centralized cloud computing service center is far away from users, transcoding in the cloud cannot respond to dynamic changes in the network in a timely manner. As an important and effective supplement to centralized cloud ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W24/06H04W28/02
CPCH04L65/80H04W24/06H04W28/0236H04L65/75H04L65/70
Inventor 邹虹黄闯张鸿吴大鹏李职杜张普宁
Owner CHONGQING UNIV OF POSTS & TELECOMM
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