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Energy-consumption-optimization adaptive streaming media distribution method for intelligent terminal

An adaptive streaming media and intelligent terminal technology, applied in selective content distribution, image communication, electrical components, etc., can solve the problems of bit rate jitter and service quality differences

Active Publication Date: 2016-01-13
TSINGHUA UNIV
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Problems solved by technology

Although energy saving is guaranteed, there is a large difference in bit rate jitter and multi-user service quality

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Embodiment Construction

[0029] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0030] The self-adaptive streaming media distribution method of the present invention can be applied in a 4G environment to realize joint optimization of user viewing experience and equipment energy consumption. The present invention uses the wireless resource block technology to separate the DASH data flow from the data flow, and the scheduling object only considers the DASH flow.

[0031] First, deploy a streaming media resource distributor at the gateway, that is, between the server and the base station. For specific deployment, see figure 1 . The streaming media resource distributor of the present invention is mainly composed of four core components, which are respectively a request packet detector, a response packet detector, a scheduler and a flow controller.

[0032] The request packet detector and response packet detector are used to m...

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Abstract

The invention discloses an energy-consumption-optimization adaptive streaming media distribution method suitable for a 4G environment. The method comprises the following steps: designing an adaptive streaming media distributor suitable for the 4G environment, performing a deployment on a gateway, combining data blocks into burst streams, issuing the burst streams to users, and optimizing network throughput, watching experiences of the users and energy consumption of user equipment in a combined way; designing a utility function for calculating user utilities, including a video definition and penalties of user experiences, of unit energy consumption, in order to realize proportional fairness among a plurality of users and smooth playing; modeling an optimal user utility problem into a non-linear integer programming problem and giving an efficient online allocation algorithm; executing the online algorithm based on channel quality and a caching state of the user equipment in order to allocate resources to the users; and affecting bit rate selections of the users through the resource allocation in order to finally realize effective video transmission under a multi-user situation.

Description

technical field [0001] The invention belongs to the technical field of mobile streaming media transmission, and in particular relates to an adaptive streaming media distribution method for intelligent terminal energy consumption optimization. Background technique [0002] Video streaming traffic is expected to account for 72% of global mobile data traffic in the next few years. The HTTP-based dynamic adaptive streaming protocol DASH (Dynamic Adaptive Streaming over HTTP) has become a popular streaming media transmission technology in the mobile environment because of its ability to adapt to changes in the network environment. The principle of DASH is to encode a video into multiple different bit rates, each video stream is divided into multiple blocks with a playback duration of 2-10 seconds, and stored on one or more video servers. Each video block has an independent URL, which can be regarded as an independent resource. The video player estimates the best bit rate based ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2385H04N21/24
CPCH04N21/2385H04N21/2401
Inventor 崔勇宋健任青妹
Owner TSINGHUA UNIV
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