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A Study on Reducing Transmission Delay in Mobile Video Communication Systems

机译:减少移动视频通信系统中传输延迟的研究

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Applying ARQ to real time video communication can significantly increase transmission delay due its retransmission operations. We analyze this delay and propose an adaptive error control scheme that uses acknowledgment from the receiver to reduce the delay. We evaluate this scheme using a computer simulation and show that the proposed scheme can reduce the delay by controlling the amount of video data by changing the quantization step size and video frame skipping. It also offers acceptable video quality as confirmed by a subjective evaluation test.
机译:由于ARQ的重传操作,将ARQ应用于实时视频通信会大大增加传输延迟。我们分析了此延迟,并提出了一种自适应错误控制方案,该方案使用了来自接收器的确认来减少延迟。我们使用计算机仿真对该方案进行了评估,结果表明,该方案可以通过更改量化步长和跳过视频帧来控制视频数据量,从而减少延迟。经主观评估测试确认,它还提供可接受的视频质量。

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