Cooperative 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 the problems of different degrees of interest and reluctance, and achieve the effect of reducing burden, improving throughput, and sharing high-speed video streams
Active Publication Date: 2017-10-27
CHONGQING UNIV OF POSTS & TELECOMM
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[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 in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention.
[0041] The technical solutions of the present invention to solve the above technical problems are:
[0042] The present invention is mainly applied to a hybrid heterogeneous network where a cellular network and short-distance communication coexist. The following will describe the implementation of the present invention in detail with reference to the accompanying drawings and example diagrams.
[0043] figure 1 This is the application scenario diagram of the present invention. In order to reduce the interference between multiple transmitters, the base station allocates independent and mutually orthogonal channel resources to this user. After the base station broadcasts the video stream, the user obt...
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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 field of mobile communication technology, and specifically relates to a method for user cooperative transmission between different clusters based on a social network, and can realize high-speed video stream sharing between users. Background technique [0002] The future mobile communication technology needs to support personalized multimedia services such as mobile TV, streaming video and video surveillance. At present, it is still facing many challenges to provide satisfactory service quality and user experience for future mobile communication technology scenarios, especially high-speed and high-reliability networks. . At present, the video transmission system between network nodes can be divided into 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 of the server. However, multicast is relative to unicast. It is impossi...
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IPC IPC(8): H04W4/00H04W40/12H04W40/14H04W40/20H04N21/6408
CPCH04N21/6408H04W40/12H04W40/14H04W40/20Y02D30/70
Inventor 张祖凡曾甜于秀兰孙韶辉
Owner CHONGQING UNIV OF POSTS & TELECOMM