Abstract
In order to improve the access efficiency of multimedia communication system and solve the problem of two-way link collaboration effectively, based on the collaboration between uplink and downlink, an adaptive multimedia streaming segmentation access mechanism is proposed. First, the multimedia communication system is divided into the transmitter division module, the receiver modular module and the relay network joint control module. In the sending end, the segmentation and flow mapping of multimedia streams are implemented. At the receiving end, the flow control of the multimedia sub-stream and the reorganization of the split flow are realized. The relay network realizes the area division and error detection of the channel capacity. Secondly, the downlink of the multimedia communication system is divided into the parallel multimedia data stream of the server cluster and multiple concurrent users. After interweaving the downlink and the uplink of the multimedia stream segmentation, the cooperative parallel multimedia stream is formed. At the same time, the interleaving weight of the downlink and the weightings of the uplink are combined in order to coordinate the area division and Realization of the channel capacity of the duplex link. Finally, simulation experiments verify the feasibility and effectiveness of the proposed algorithm in terms of resource utilization, wireless access accuracy and efficiency, and multimedia communication quality.
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Acknowledgements
1. Construction and application of carbon information disclosure quality evaluation index system of national statistical science research project of National Bureau of Statistics of PRC(2017LY36).
2. Research on the development of Hunan carbon financial market mechanism of Hunan Social Science Achievements Appraisal Committee Project (XSP18YBC348).
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Zhang, Q., Xu, D. Multimedia flow segmentation access mechanism with adaptive cooperative uplink and downlink. Multimed Tools Appl 78, 8723–8735 (2019). https://doi.org/10.1007/s11042-018-6238-4
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DOI: https://doi.org/10.1007/s11042-018-6238-4