Dynamic mmWave Beam Tracking for High Speed Railway Communications

被引：0
|
作者：
Gao, Meilin [1 ]
Ai, Bo [1 ]
Niu, Yong [1 ]
Zhong, Zhangdui [1 ]
Liu, Yiru [1 ]
Ma, Guoyu [1 ]
Zhang, Zhewei [2 ]
Li, Dapeng [3 ]
机构：
[1] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China
[3] ZTE Corp, Shenzhen 518057, Guangdong, Peoples R China
来源：
2018 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE WORKSHOPS (WCNCW) | 2018年
基金：
中国博士后科学基金; 北京市自然科学基金;
关键词：
Beam tracking; high-speed railway (HSR); millimeter wave (mmWave); low complexity; INTERFERENCE; NETWORKS;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
With the worldwide deployment of the railway, high-speed railway (HSR) tends to evolve into an intelligent transportation system with efficient and green transportation characteristics. To meet the explosive growth of wireless data traffic in "smart rail", millimeter-wave (mmWave) communications are used to offer several Gbps data rate via beamforming structures by utilizing huge unlicensed bandwidth. In this paper, the beam tracking strategies for mmWave HSR communications are investigated, and a dynamic beam tracking strategy is proposed by adjusting the beam direction and beam width jointly, where the main idea is to maximize the sum-rate capacity while satisfying the critical quality of service (QoS) requirements. Then it boils down to a demanding non-convex problem, and a near-optimal solution is provided based on the problem decomposition and the genetic algorithm. Finally, along with the moving trains the proposed beam tracking scheme can provide near-optimal capacity performance with a low outage probability, and reduce the implementation complexity.
引用
收藏
页码：278 / 283
页数：6
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