A Collaborative Video Transmission Method Based on Stable Matching
A technology for video transmission and stability, applied in the field of high-speed video stream sharing among users, can solve problems such as reluctance and different degrees of interest, and achieve the effect of reducing burden, improving throughput, and sharing high-speed video streams
Active Publication Date: 2020-09-29
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology
[0004] Most studies assume that all users have the same willingness to cooperate, but this is not the case, because users have different interests in content and are unwilling to collaborate with potential D2D users who do not have social relationships.
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[0040] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.
[0041] The technical scheme that the present invention solves the problems of the technologies described above is:
[0042] The present invention is mainly applied to a hybrid heterogeneous network in which a cellular network and a short-distance communication coexist. The implementation of the present invention will be described in detail below with reference to the accompanying drawings and example diagrams.
[0043] figure 1 It is an application scene diagram of the present invention, in order to reduce interference among multiple transmitting ends, the base station allocates independent and mutually orthogonal channel resources to the user. After the base station broadcasts the video stream, the user...
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The invention discloses a cooperative video transmission method based on stable matching, belonging to the technical field of mobile communication. The method comprises the steps of (1) dividing a video stream into a plurality of data packets, and dividing users into different clusters according to different data packets received by the users, (2) using a weight factor to reflect the importance of the different attributes of the user and calculate social distances of the users, (3) generating a dynamic social relation with the combination of the dynamic physical distances of the users, (4) using the social relation and a wireless transmission environment to calculate the throughput and time delay of one time slot unicast, and (5) designing an utility function of the cooperation of different users to generate preference information, and using a Gale-Shapley algorithm to use a user independent negotiation form to form a stable collaborative transmission scheme. The invention provides the cooperative video transmission method based on stable matching, the fusion of a cellular communication system and D2D (Device-To-Device) short distance communication is realized, compared with a traditional collaborative method, the computational complexity can be reduced, and the throughput is improved.
Description
technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a social network-based user cooperative transmission method among different clusters, which can realize high-speed video stream sharing among users. Background technique [0002] Future mobile communication technologies need to support personalized multimedia services such as mobile TV, streaming video, and video surveillance. At present, there are still many challenges in providing satisfactory service quality and user experience for future mobile communication technology scenarios, especially high-speed, high-reliability networks. . At present, the video transmission system between network nodes can be divided into two modes: multicast and unicast. Multicast refers to the process of transmitting information to a group of destination addresses at the same time, which saves the load on the server. It is impossible to provide personalized services accordi...
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IPC IPC(8): H04W4/70H04W40/12H04W40/14H04W40/20H04N21/6408
CPCH04N21/6408H04W40/12H04W40/14H04W40/20Y02D30/70
Inventor 张祖凡曾甜于秀兰孙韶辉
Owner CHONGQING UNIV OF POSTS & TELECOMM