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首页> 外文期刊>Circuits and Systems for Video Technology, IEEE Transactions on >Enabling Adaptive High-Frame-Rate Video Streaming in Mobile Cloud Gaming Applications
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Enabling Adaptive High-Frame-Rate Video Streaming in Mobile Cloud Gaming Applications

机译：在移动云游戏应用中启用自适应高帧率视频流

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摘要

High-frame-rate (HFR) video is emerging in popular gaming applications to enhance the smooth experience perceived by end users. However, it is challenging to guarantee the delivery quality of HFR video in mobile cloud gaming scenarios because of the high transmission rate and limited wireless resources. To address this critical problem, we develop a novel transmission scheduling framework dubbed AdaPtive HFR vIdeo Streaming (APHIS). The term adaptive indicates this scheme’s capability in dynamically adjusting the video traffic load and forward error correction (FEC) coding. First, we propose an online video frame selection algorithm to minimize the total distortion based on the network status, input video data, and delay constraint. Second, we introduce an unequal FEC coding scheme to provide differentiated protection for Intra (I) and Predicted (P) frames with low-latency cost. The proposed APHIS framework is able to appropriately filter video frames and adjust data protection levels to optimize the quality of HFR video streaming. We conduct extensive emulations in Exata involving HFR video encoded with H.264 codec. Experimental results show that APHIS outperforms the reference transmission schemes in terms of video peak signal-to-noise ratio, end-to-end delay, and goodput. Therefore, we recommend APHIS for delivering HFR video streaming in mobile cloud gaming systems.
机译：高帧率（HFR）视频正在流行的游戏应用程序中出现，以增强最终用户感知的流畅体验。但是，由于高传输速率和有限的无线资源，在移动云游戏场景中保证HFR视频的交付质量具有挑战性。为了解决这个关键问题，我们开发了一种称为AdaPtive HFR视频流（APHIS）的新型传输调度框架。自适应一词表示该方案动态调整视频流量负载和前向纠错（FEC）编码的能力。首先，我们提出一种在线视频帧选择算法，以根据网络状态，输入视频数据和延迟约束将总失真降至最低。其次，我们引入了一种不平等的FEC编码方案，以低延迟成本为帧（I）和预测（P）帧提供差异化​​保护。所提出的APHIS框架能够适当地过滤视频帧并调整数据保护级别，以优化HFR视频流的质量。我们在Exata中进行了广泛的仿真，涉及使用H.264编解码器编码的HFR视频。实验结果表明，在视频峰值信噪比，端到端延迟和吞吐量方面，APHIS优于参考传输方案。因此，我们建议APHIS在移动云游戏系统中交付HFR视频流。

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