多媒体多通道交互视频流多点传输控制方法

Multimedia Multi-Channel Interactive Video Stream Multi-Point Transmission Control Method

针对当前多媒体视频流传输控制中存在丢包率和时延高的问题,提出基于蚁群的多媒体多通道交互视频流多点传输控制方法。分析多通道交互视频流传输系统,获取视频流传输丢包量和时延等参量,并构建视频流多点传输控制目标函数。结合蚁群算法求解视频流多点传输的目标函数,迭代更新当前最优解,直到输出结果为使视频流多点传输过程中丢包率和时延最低的路径,实现视频流传输控制。实验结果表明,上述方法运行下视频流传输丢包率和时延均很低,鲁棒性强。

Due to high packet loss rate and high delay of current multimedia video stream transmission control methods, this paper proposed a method to control multi-point transmission of multimedia multi-channel interactive video stream based on ant colony. Firstly, we analyzed the transmission system of multi-channel interactive video stream, and then obtained the parameters such as packet loss and time delay of video stream transmission. Meanwhile, we constructed the objective function of multi-point transmission control of video streaming. Combined with ant colony algorithm, we solved the objective function of multi-point transmission of video streams and updated the current optimal solution iteratively until the output was the path that minimized the packet loss rate and time delay during the multi-point transmission of video stream. Thus, we realized the control of video streaming transmission. Simulation results show that the proposed method has lower packet loss rate and time delay of video stream transmission and stronger robustness.