Incentive optimization method for edge video cache in passive optical network driven by double-layer game
A passive optical network and optical network unit technology, applied in the field of edge video cache incentive optimization in passive optical networks, to achieve the effect of promoting the improvement of video service quality and promoting the improvement of video service benefits
Active Publication Date: 2021-09-28
NANJING UNIV OF FINANCE & ECONOMICS
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However, in practice, ONUs generally do not actively provide storage space for caching videos, because this will inevitably bring additional cost consumption, so video providers need to design specific incentive mechanisms for ONUs to Profit in the process of providing cache space, so that the optical network unit actively contributes storage space for caching video
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[0055] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0056] The present invention designs an incentive optimization method for edge video buffering in passive optical networks driven by a double-layer game. The incentive mechanism describes the competitive relationship between video providers and optical network units and the relationship between optical network units by establishing a double-layer Stackelberg game model. The cooperative relationship between them is analyzed by recursive method, and then the optimal reward strategy of the video provider and the optimal video buffer space supply decision of the optical network unit are obtained. like figure 2 As shown, the method is divided into three implementation stages, that is, the first stage of the construction of the two-layer Stackelberg game model; the second stage of the optimal decision-making for each optical network unit in the ...
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The invention discloses an optimization method for edge video buffering in a passive optical network driven by a double-layer game. The method includes three stages: the first stage builds a double-layer Stackelberg game model for a video buffer system; the second stage adopts a recursive method to give The optimal decision of the optical network unit in the two-layer game is obtained; in the third stage, based on the optimal decision of the optical network unit, the iterative method is used to reversely solve the optimal strategy of the video provider. Based on the present invention, video data can be cached in the storage space provided by the optical network unit, thereby effectively improving the video service quality and video service benefit in the passive optical network supporting edge caching.
Description
technical field [0001] The invention belongs to the field of optical fiber access networks, and in particular relates to an excitation optimization method for edge video buffering in a passive optical network. Background technique [0002] With the continuous increase of mobile data traffic, passive optical networks with high-speed and stable bandwidth have been widely studied and used as the backend of mobile access subnetworks to support broadband services in mobile access subnetworks more efficiently. However, transporting increasingly high-bandwidth-demanding and delay-sensitive mobile video data over passive optical networks still faces severe challenges. Considering that video data is traditionally stored on servers in the core network, in order to meet the video requests generated by mobile terminal users, video providers first need to send the video data requested by users to the optical line connecting the passive optical network and the core network on the termina...
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IPC IPC(8): H04N21/231H04N21/61H04Q11/00
CPCH04N21/23103H04N21/61H04Q11/0067
Inventor 李燕曹杰张震刘金良代仕芳
Owner NANJING UNIV OF FINANCE & ECONOMICS