| 并行多路传输中数据调度算法的研究 |
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| 引用本文： | 陶 洋,张传欣,代 堑,李 攀. 并行多路传输中数据调度算法的研究[J]. 计算机应用研究, 2013, 30(4): 1155-1157 |
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| 作者姓名： | 陶 洋 张传欣 代 堑 李 攀 |
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| 作者单位： | 1. 重庆邮电大学, 重庆 400065; 2. 广州杰赛科技股份有限公司, 广州 510310 |
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| 基金项目： | 重庆市科技攻关计划资助项目（CSTC, 2009AB2245）; 重庆市教委科技资助项目（KJ090516） |
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| 摘 要： | 针对传统并行多路传输中数据调度算法存在的问题,基于MPTCP协议,提出了带宽预测和前向时延的数据调度算法(data-scheduling algorithm using bandwidth estimation and forward trip-time,DA-BEFT)。该算法充分考虑子流间传输时延差较大的影响,结合性能好的重传选路策略,减轻接收端因数据乱序导致的缓存阻塞,提高整个连接吞吐量。通过仿真实验验证了DA-BEFT在子流时延差变化时能够提高带宽利用率,提高网络的吞吐量。
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| 关 键 词： | MPTCP 并行多路传输 缓存阻塞 数据调度 |
Research of data-scheduling algorithm in concurrent multipath transfer |
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| TAO Yang,ZHANG Chuan-xin,DAI Qian,LI Pan. Research of data-scheduling algorithm in concurrent multipath transfer[J]. Application Research of Computers, 2013, 30(4): 1155-1157 |
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| Authors: | TAO Yang ZHANG Chuan-xin DAI Qian LI Pan |
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| Affiliation: | 1. Chongqing University of Posts & Telecommunications, Chongqing 400065, China; 2. GCI Science & Technology Co. , Ltd, Guangzhou 510310, China |
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| Abstract: | This paper proposed a data-scheduling algorithm using bandwidth estimation and forward trip-time (DA-BEFT) combined with the existing works. It considered fully the negative impact caused by the significant difference of time delay along subflows, and reduced the receive buffer blocking caused by out-of-order data combined with optimal retransmission policy, and improved the entity connect-level throughput. Simulation results show that, DA-BEFT can effectively improve the utilization of available bandwidth resources and the throughput of the entire connection. |
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| Keywords: | MPTCP concurrent multi-path transmission buffer blocking data-scheduling |
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