高铁场景中基于位置公平保证的毫米波波束成形方法

doi:10.11896/jsjkx.190800029

计算机科学 ›› 2020, Vol. 47 ›› Issue (10): 269-274.doi: 10.11896/jsjkx.190800029

高铁场景中基于位置公平保证的毫米波波束成形方法

蒋锐^1,2, 尹惠^1,2, 徐友云²

1 南京邮电大学通信与信息工程学院南京210003
2 南京邮电大学通信与网络技术国家工程研究中心南京210003

收稿日期:2019-08-07 修回日期:2019-12-06 出版日期:2020-10-15 发布日期:2020-10-16
通讯作者: 蒋锐(j_ray@njupt.edu.cn)
基金资助:
国家重点研发计划(2016YFE0200200);国家自然科学基金(61601243,61801240,61701253)

Millimeter-wave Beamforming Scheme Based on Location Fairness Guarantee for HSR Communications

JIANG Rui^1,2, YIN Hui^1,2, XU You-yun²

1 College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing,210003,China
2 National Engineering Research Center of Communications and Networking,Nanjing University of Posts and Telecommunications,Nanjing 210003,China

Received:2019-08-07 Revised:2019-12-06 Online:2020-10-15 Published:2020-10-16
About author:JIANG Rui,born in 1985,Ph.D,asso-ciate professor.His main research interests include wireless communications and so on.
Supported by:
National Key Research and Development Program of China (2016YFE0200200) and National Natural Science Foundation of China (61601243,61801240,61701253)

摘要/Abstract

摘要： 为了提升高铁无线通信系统信息传输的稳定性和可靠性,提出了一种基于位置公平保证的毫米波波束成形方法。该方法采用交错冗余覆盖网络结构来提高信息传输的可靠性。在该结构中,基站根据其与车顶移动中继之间的距离,发射不同宽度的服务波束进行信号传输,近距离时采用宽波束为列车提供服务,远距离时采用窄波束以补偿较高的路径损耗,从而保持列车在运行过程中数据传输速率的稳定性。此外,为了计算最优的发射波束宽度和波束边界点位置,提出了一种自适应搜索算法来优化服务波束。理论分析和仿真结果表明,所提方法不仅可以有效提升高铁无线通信系统数据传输的稳定性,还可以使系统获得较低的通信中断概率。

关键词: 波束成形, 高铁通信, 毫米波, 交错冗余覆盖网络, 位置公平

Abstract: In this paper,a millimeter-wave beamforming scheme based on location fairness guarantee is proposed to improve the stability and reliability of high-speed railway (HSR) communications.In the proposed scheme,the interleaved redundant coverage architecture is adopted to enhance the reliability of information transmission.Furthermore,the serving beams with different beam-width are formed by base station to transmit signals.The beam-width is determined by the distance from base station to mobile relay mounted on the top of train,which could keep the stability of data transmission rate during the running time of the train.Additionally,an adaptive searching algorithm is developed to calculate the optimal transmitting beam-width and beam boundary points.Theoretical analysis and simulation results suggest that the proposed scheme could not only improve the stability performance of HSR networks,but also obtain a lower communication outage probability.

Key words: Beamfor-ming, High-speed railway (HSR) communications, Interleaved redundant coverage architecture, Location fairness, Millimeter-wave

中图分类号:

U285

蒋锐, 尹惠, 徐友云. 高铁场景中基于位置公平保证的毫米波波束成形方法[J]. 计算机科学, 2020, 47(10): 269-274. https://doi.org/10.11896/jsjkx.190800029

JIANG Rui, YIN Hui, XU You-yun. Millimeter-wave Beamforming Scheme Based on Location Fairness Guarantee for HSR Communications[J]. Computer Science, 2020, 47(10): 269-274. https://doi.org/10.11896/jsjkx.190800029

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高铁场景中基于位置公平保证的毫米波波束成形方法

Millimeter-wave Beamforming Scheme Based on Location Fairness Guarantee for HSR Communications

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