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4D-MAP:multipath Adaptive Packet Scheduling for Live Streaming over QUIC

Journal of Computer Science & Technology 2024年第1期39卷 159-176页

作者：宋丛溪韩彪苏金树 College of Computer Science and Technology National University of Defense TechnologyChangsha 410073China

In recent years,live streaming has become a popular application,which uses TCP as its primary transport *** UDP Internet Connections(QUIC)protocol opens up new opportunities for live ***,how to leverage QUIC to transmit live videos has not been studied *** paper first investigates the achievable quality of experience(QoE)of streaming live videos over TCP,QUIC,and their multipath extensions multipath TCP(MPTCP)and multipath QUIC(MPQUIC).We observe that MPQUIC achieves the best performance with bandwidth aggregation and transmission ***,network fluctuations may cause heterogeneous paths,high path loss,and band-width degradation,resulting in significant QoE *** by the above observations,we investigate the multipath packet scheduling problem in live streaming and design 4D-MAP,a multipath adaptive packet scheduling scheme over ***,a linear upper confidence bound(LinUCB)-based online learning algorithm,along with four novel scheduling mechanisms,i.e.,Dispatch,Duplicate,Discard,and Decompensate,is proposed to conquer the above problems.4D-MAP has been evaluated in both controlled emulation and real-world networks to make comparison with the state-of-the-art multipath transmission *** results reveal that 4D-MAP outperforms others in terms of improving the QoE of live streaming.

关键词： multipath transmission live streaming Quick UDP Internet Connections(QUIC) quality of experience(QoE) packet scheduling

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An OpenFlow-based performance-oriented multipath forwarding scheme in datacenters

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Frontiers of Information Technology & Electronic Engineering 2016年第7期17卷 647-660页

作者： Bo LIU Ming CHEN Bo XU Hui HU Chao HU Qing-yun ZUO Chang-you XING College of Command Information Systems PLA University of Science and TechnologyNanjing 210007China PLA Academy of National Defense Information Wuhan 430020China

Although dense interconnection datacenter networks(DCNs)(e.g.,Fat Tree) provide multiple paths and high bisection bandwidth for each server pair,the widely used single-path transmission Control Protocol(TCP)and equal-cost multipath(ECMP) transport protocols cannot achieve high resource utilization due to poor resource excavation and *** this paper,we present LESSOR,a performance-oriented multipath forwarding scheme to improve DCNs' resource *** adopting an Open Flow-based centralized control mechanism,LESSOR computes near-optimal transmission path and bandwidth provision for each flow according to the global network view while maintaining nearly real-time network view with the performance-oriented flow observing *** and comprehensive simulations show that LESSOR can efficiently improve the network throughput,which is higher than ECMP by 4.9%–38.3% under different *** also provides 2%–27.7% improvement of throughput compared with ***,LESSOR decreases the average flow completion time significantly.

关键词： Datacenter network Traffic engineering Open Flow multipath transmission

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Design and realization of indoor VLC-Wi-Fi hybrid network

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Journal of Communications and Information Networks 2017年第4期2卷 75-87页

作者： Wentao Zhang Li Chen Xiaohui Chen Zihao Yu Zhiyuan Li Weidong Wang Optical-Wireless Communication Key Lab of Chinese Academy of Sciences University of Science and Technology of ChinaHefei 230027China

Indoor wireless communication networking has received significant attention along with the growth of indoor data ***(Visible Light Communication)as a novel wireless communication technology with the advantages of a high data rate,license-free spectrum and safety provides a practical solution for the indoor high-speed transmission of large data ***,limited coverage is an inherent feature of *** this paper,we propose a novel hybrid VLC-Wi-Fi system that integrates multiple links to achieve an indoor high-speed wide-coverage network combined with multiple access,a multi-path transmission control protocol,mobility management and cell ***,we develop a hybrid network experiment platform,the experimental results of which show that the hybrid VLC-Wi-Fi network outperforms both single VLC and Wi-Fi networks with better coverage and greater network capacity.

关键词： hybrid network VLC Wi-Fi user access mobility management handover mechanism multipath transmission

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