Video opportunity transmission routing algorithm based on multi-user cooperative game
A multi-user collaboration and transmission path technology, applied in the field of video opportunistic transmission routing algorithms, can solve problems such as excessive use of data replication, reduced network performance, consumption of equipment and network resources, etc.
Inactive Publication Date: 2018-11-20
HENAN UNIV OF SCI & TECH
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In order to obtain a higher delivery rate and lower delivery delay, data replication is often overused. Redundant data packets will not only consume a lot of equipment and network resources, but also increase the transmission load of the network and reduce network performance.
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[0062] The present invention will be described in detail below in conjunction with specific embodiments. This embodiment provides detailed implementation methods and specific operation processes on the premise of the technical solution of the present invention.
[0063] System model: see figure 1 , in urban areas, all mobile users and vehicles equipped with mobile intelligent terminals can be regarded as mobile nodes; and from the network point of view, these nodes form a mobile opportunity network in a conscious or unconscious manner. Video data is transmitted through D2D through opportunistic contact between nodes. Therefore, video data offloading is actually the process of transmitting video data through mobile opportunistic networks. Such as figure 1 as shown, figure 1 A system model of video data offloading is given. The system model mainly includes two parts, namely the platform side and the user side. On the platform side, the management platform can be regarded as ...
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The invention discloses a video opportunity transmission routing algorithm based on multi-user cooperative game, comprising: firstly synthesizing two factors of video data itself and the transmissionnetwork to establish an edge quality gain model of video data packets; secondly, considering multiple nodes that meet as a connected network, and modeling the process of data exchange there-between asa multi-user collaborative game process; and finally, making decisions for the replication or forwarding of each video data packet based on the optimal Nash solution of geometric space representation. The algorithm guarantees that the number of video packet backups in the network is the least when the video transmission quality is optimal. The simulation results based on the synthesized data setand the real data set show that the video transmission quality of the invention is 1-2dB higher than that of the similar algorithm, but that the average maximum packet backup number is only about 25%of the same algorithm. The algorithm is capable of not only maximizing the video transmission quality, but also reducing the average maximum backup number of the data packet, thereby minimizing the transmission overhead of the network.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a video opportunistic transmission routing algorithm based on multi-user cooperative game. Background technique [0002] The rapid development of microelectronics and wireless communication technology has enabled the rapid popularization of smart terminal devices in the past decade, and various sensor devices embedded in them have also given people the ability to perceive the external environment through video. At the same time, benefiting from the rapid development of the mobile Internet, video data can be shared among users anytime and anywhere, and various applications and services can be provided to users. However, the proliferation of mobile devices has brought about an explosive growth in mobile data traffic, of which video data accounts for a large proportion. According to Cisco's forecast, this value will reach 84% by the end of 2018. However, mobile data ...
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IPC IPC(8): H04L12/24H04L12/721H04N21/4402
CPCH04L41/145H04L45/38H04N21/4402
Inventor 吴红海马华红邢玲张高远谢萍郑国强桑倩倩
Owner HENAN UNIV OF SCI & TECH