Streaming High-Quality Mobile Video with Multipath TCP in Heterogeneous Wireless Networks

Streaming High-Quality Mobile Video with Multipath TCP in Heterogeneous Wireless Networks
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在异构无线网络中使用多路径 TCP 传输高质量移动视频

DOI:
10.1109/tmc.2015.2497238
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发表时间:
2016-09
影响因子:
7.9
通讯作者:
Chen, Junliang
Chen, Junliang
中科院分区:
计算机科学2区
文献类型:
--
作者:
Yuen, Chau;Cheng, Bo;Wang, Ming;Chen, Junliang

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具有互补特征的无线基础设施的激增促使异构接入网络中并发视频传输的带宽聚合。多路径TCP(MPTCP)是IETF推荐的一种重要的传输层协议,用于集成不同的接入介质(例如,蜂窝和Wi-Fi)。本文研究了在多宿主终端的异构无线网络中使用MPTCP进行移动的视频传输的问题。为了获得最佳的实时视频流质量,我们必须认真考虑不同接入网络中的路径不对称性和MPTCP中数据重传机制的缺点。出于解决这些关键问题,本研究提出了一种新的质量驱动的多路径TCP(ADMIT)计划,集成了效用最大化的前向纠错(FEC)编码和速率分配。我们开发了一个分析框架,在多个通信路径的MPTCP为基础的视频传输质量建模。ADMIT能够有效地将最可靠的接入网络与FEC编码集成,以最大限度地减少端到端视频失真。ADMIT的性能进行了评估,通过广泛的半物理仿真在Exata涉及H.264视频流。实验结果表明,ADMIT在视频峰值信噪比(PSNR)、端到端延迟和有效吞吐量方面优于参考传输协议。因此,我们建议ADMIT流高品质的移动的视频在异构无线网络与多宿主终端。
The proliferating wireless infrastructures with complementary characteristics prompt the bandwidth aggregation for concurrent video transmission in heterogeneous access networks. Multipath TCP (MPTCP) is an important transport-layer protocol recommended by IETF to integrate different access medium (e.g., Cellular and Wi-Fi). This paper investigates the problem of mobile video delivery using MPTCP in heterogeneous wireless networks with multihomed terminals. To achieve the optimal quality of real-time video streaming, we have to seriously consider the path asymmetry in different access networks and the disadvantages of the data retransmission mechanism in MPTCP. Motivated by addressing these critical issues, this study presents a novel quAlity-Driven MultIpath TCP (ADMIT) scheme that integrates the utility maximization based Forward Error Correction (FEC) coding and rate allocation. We develop an analytical framework to model the MPTCP-based video delivery quality over multiple communication paths. ADMIT is able to effectively integrate the most reliable access networks with FEC coding to minimize the end-to-end video distortion. The performance of ADMIT is evaluated through extensive semi-physical emulations in Exata involving H.264 video streaming. Experimental results show that ADMIToutperforms the reference transport protocols in terms of video PSNR (Peak Signal-to-Noise Ratio), end-to-end delay, and goodput. Thus, we recommend ADMIT for streaming high-quality mobile video in heterogeneous wireless networks with multihomed terminals.
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