| 移动边缘计算技术在高铁通信网络中的应用 |
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| 引用本文： | 郜城城,周旭,范鹏飞,任勇毛.移动边缘计算技术在高铁通信网络中的应用[J].计算机系统应用,2018,27(8):56-62. |
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| 作者姓名： | 郜城城 周旭 范鹏飞 任勇毛 |
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| 作者单位： | 中国科学院 计算机网络信息中心, 北京 100190;中国科学院大学, 北京 100049,中国科学院 计算机网络信息中心, 北京 100190,中国科学院 计算机网络信息中心, 北京 100190,中国科学院 计算机网络信息中心, 北京 100190 |
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| 基金项目： | 中国科学院计算机网络信息中心所级项目（ZXRW-201601）；国家科技重大专项（2017ZX03001015-004,2018ZX03001015-002,2018ZX03001021-003） |
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| 摘 要： | 随着高铁的日益普及,在高铁列车与地面之间建立移动数据通道,满足车地数据传输以及旅客上网的需求,成为越来越迫切的问题.现有GSM-R和LTE-R的解决方案,还存在带宽小、时延大、传输不稳定等问题.为此,本文提出采用移动边缘计算（Mobile Edge Computing,简称为MEC）技术来优化高铁通信网络.主要思想是在车厢和基站部署MEC服务器,经过两级MEC服务器的协同配合,达到复用空口链路、提升无线传输稳定性和降低时延的目的,并最终提升用户体验.通过实际网络试验结果显示,该方案可显著提升传输速率、减小传输时延.
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| 关 键 词： | 移动边缘计算 MEC服务器 协同配合 传输稳定性 传输时延 |
| 收稿时间： | 2017/12/21 0:00:00 |
| 修稿时间： | 2018/1/11 0:00:00 |
Application of Mobile Edge Computing Technology in High Speed Rail Communication Network |
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| GAO Cheng-Cheng,ZHOU Xu,FAN Peng-Fei and REN Yong-Mao.Application of Mobile Edge Computing Technology in High Speed Rail Communication Network[J].Computer Systems& Applications,2018,27(8):56-62. |
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| Authors: | GAO Cheng-Cheng ZHOU Xu FAN Peng-Fei and REN Yong-Mao |
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| Affiliation: | Computer Network Information Center, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China,Computer Network Information Center, Chinese Academy of Sciences, Beijing 100190, China,Computer Network Information Center, Chinese Academy of Sciences, Beijing 100190, China and Computer Network Information Center, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | With the increasing popularity of high-speed rail, the establishment of mobile data channels between high-speed trains and ground to meet the needs of vehicle data transmission and passenger Internet access has become an increasingly urgent issue. The existing solutions of GSM-R and LTE-R still exist such problems as small bandwidth, large delay, and unstable transmission. To this end, this study uses Mobile Edge Computing (MEC) to optimize the high-speed communication network. The main idea is to deploy an MEC server in the high-speed rail and the base station. Under two levels of MEC server cooperation, the solution can reuse air interface links, improve wireless transmission stability, and reduce latency. Finally, users will get a better experience. The actual network test results show that the scheme can significantly improve the transmission rate and reduce the transmission delay. |
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| Keywords: | mobile edge computing MEC server collaboration transmission stability transmission delay |
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