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Algorithm Research & Explore
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App. Res. of Comp. Printed Article
Vol. 36, 2019 No. 11
3302-3305

Research on application of improved WFQ algorithm in train network scheduling

Qin Jianxiu
Song Jianlin
Dai Xiaowen
School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
DOI: 10.19734/j.issn.1001-3695.2018.04.0290

Abstract

With the rapid development of rail transit in China, the TCN-based train network can no longer meet the needs of train data transmission services. The TCSN emerges as the times require. This paper studied a train service communication network based on the integrated service model for the train data transmission business, and established the traffic flow model for the four trains. It analyzed the weighted fairness queue scheduling(WFQ) algorithm for network grouping and designed service classification and bandwidth allocation based on WFQ scheduling(SCBAWFQ) algorithm. And it used simulation software to simulate and analyze the time delays of constant data stream and burst data stream under WFQ and SCBAWFQ respectively. The simulation results prove that the improved algorithm can reduce the latency of real-time service stream. It has a good effect, so that the SCBAWFQ algorithm realizes the need to maintain both the fairness of the WFQ algorithm and the quali-ty of service for real-time services.

Foundation Support

国家科技支撑项目(2015BAGB01-05)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.04.0290
Publish at: Application Research of Computers Printed Article, Vol. 36, 2019 No. 11
Section: Algorithm Research & Explore
Pages: 3302-3305
Serial Number: 1001-3695(2019)11-023-3302-04

Publish History

[2019-11-05] Printed Article

Cite This Article

秦剑秀, 宋建霖, 戴小文. 改进WFQ算法在列车网络调度中的应用研究 [J]. 计算机应用研究, 2019, 36 (11): 3302-3305. (Qin Jianxiu, Song Jianlin, Dai Xiaowen. Research on application of improved WFQ algorithm in train network scheduling [J]. Application Research of Computers, 2019, 36 (11): 3302-3305. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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