Paper Info
Title
Joint Beamforming And Power Allocation In Millimeter-Wave High-Speed Railway Systems
Abstract
Achieving high data transmission rate in the high-speed railway (HSR) communications has always been the significant yet challenging goal. Unfortunately, through an enormous number of measurements, current spectrum efficiency in HSR scenarios is still far from satisfactory to meet the data rate requirements for HSR passengers. To tackle this problem, we investigate the power allocation in the extremely time-varying millimeter-wave (mmWave) HSR systems with hybrid beamforming in the paper. With the purpose of maximizing the achievable sum rate, we first formulate a joint hybrid beamforming and power allocation problem in the mmWave HSR channel model. Then we obtain the solution of beamforming design. Finally, for the sake of achieving dynamic power control, a low-complexity iterative optimization approach is proposed. The numerical results indicate that the proposed iterative algorithm is capable of achieving a significantly higher spectral efficiency compared with the existing schemes.
Year
DOI
Venue
2020
10.1109/GLOBECOM42002.2020.9322161
2020 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)
Keywords
DocType
ISSN
High-speed railway (HSR), millimeter-wave communications, hybrid beamforming, power allocation
Conference
2334-0983
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Jianpeng Xu1203.62
Bo Ai21581185.94
Liangyu Chen305.75