A novel scheduling approach to concurrent multipath transmission of high definition video in overlay networks
A novel scheduling approach to concurrent multipath transmission of high definition video in overlay networks
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DOI：
10.1016/j.jnca.2014.05.003
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发表时间：
2014-09
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影响因子：
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通讯作者：
Jiyan Wu;B. Cheng;Yanlei Shang;Jun Huang;Junliang Chen
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文献类型：
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作者：
Jiyan Wu;B. Cheng;Yanlei Shang;Jun Huang;Junliang Chen
网络基础设施的最新进展提供了更多的机会来支持通过多个通信路径的视频递送。然而，由于高吞吐量需求和大尺寸视频帧，高清晰度（HD）视频传输仍然构成关键挑战。为优化高清视频并发多径传输的时延性能，提出了一种新的调度方法FSWG（FrameSplitting based onWeibull distribution andGraph theory），该方法旨在最大限度地减少端到端的帧时延，同时减少乱序到达.首先，我们解析地构建了一个延迟性能模型的基础上Weibull分布和图论的多径覆盖网络的高清视频流。其次，我们制定了平行路径上的帧分裂作为一个约束优化问题，最大限度地减少总帧延迟和水填充算法的基础上得到它的解决方案。第三，我们设计了一个多路径视讯传输系统，以实现所提出的排程方法。性能评估是通过大量的模拟在QualNet使用H.264视频流。实验结果表明，FSWG优于现有的计划在平均意见分数（MOS），峰值信噪比（PSNR），和延迟性能指标。
Recent advancements in network infrastructures provide increased opportunities to support video delivery over multiple communication paths. However, the high definition (HD) video transmissions still pose crucial challenges due to the high throughput demands and large-size video frames. Motivated by optimizing the delay performance for concurrent multipath transmission of HD video, we propose a novel scheduling approach dubbed FSWG (FrameSplitting based onWeibull distribution andGraph theory) that aims to minimize the end-to-end frame delay while alleviating out-of-order arrivals. First, we analytically construct a delay performance model for HD video streaming in multipath overlay networks based on Weibull distribution and graph theory. Second, we formulate the frame splitting over parallel paths as a constrained optimization problem of minimizing total frame delay and derive its solution based on the water filling algorithm. Third, we design a multipath video transmission system to implement the proposed scheduling approach. The performance evaluation is conducted through extensive simulations in QualNet using H.264 video streaming. Experimental results show that FSWG outperforms the existing schemes in terms of Mean Opinion Score (MOS), Peak Signal-to-Noise Ratio (PSNR), and delay performance metrics.