| 摘要: |
| 针对地空通信系统传输时延较高、吞吐量较低的问题，提出了一种拥塞感知负载分布（Congestion-aware Load Distribution，CALD）算法。算法通过通信路径质量的变化，估计对应路径的拥塞窗口变化情况，自适应地调整每次子流分配大小，降低端到端的延迟，以应对地空通信的低带宽和高时延特性。同时基于搭建的多路径端到端服务器进行了实验，结果表明，所提算法在吞吐量性能和端到端延迟等方面都优于现有的子流分配算法。 |
| 关键词: 地空通信 负载分布 拥塞窗口 子流分配 |
| DOI： |
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| 基金项目:国家科技重大专项（2017ZX03001004-004） |
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| A load distribution algorithm suitable for ground-to-air communications |
| YU Xiang,LIU Han,DUAN Sirui,CHEN Yubo |
| (School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications, Chongqing 400065,China) |
| Abstract: |
| In order to realize low delay and high throughput transmission in ground-to-air communication systems,a congestion-aware load distribution(CALD) algorithm is proposed.According to the change of communication path quality,the algorithm estimates the change of the congestion window of the corresponding path,adaptively adjusts the allocation size of each subflow,and reduces the end-to-end delay as much as possible,so as to cope with the characteristics of low bandwidth and high delay of ground-to-air communication.At the same time,the experimental results on a multi-path end-to-end server show that the proposed algorithm is superior to the existing substream assignment algorithms in throughput performance and end-to-end delay. |
| Key words: ground-to-air communication load distribution congestion window subflow allocation |
