Title
A Comprehensive Study on mmWave-Based Mobile Hotspot Network System for High-Speed Train Communications
Abstract
This paper presents a comprehensive study on millimeter-wave-based mobile hotspot network (MHN) system for high-speed train (HST) communications, including system design, field trial, channel modeling based on measurement campaign, simulation, and validation. First, an overview of the MHN system and the design of an MHN enhanced (MHN-E) system including physical layer specification and single frequency network are provided. Second, the overall design of prototypes for MHN conventional (MHN-C) and MHN-E systems is presented, and then the recent experimental results of a field trial conducted at Seoul subway line 8 with the MHN-C prototype and demonstrations with the MHN-E prototype are analyzed. Third, this paper presents a measurement campaign investigating channel characteristics of a rural HST environment and a QuaDRiGa-based channel model developed based on the parameters extracted from the measurement. Finally, a computer simulation is conducted to validate the performance of the MHN-E system at high mobility of up to 500 km/h under the QuaDRiGa channel model, which suggests a good methodology for the validation of HST communication systems at the highmobility since it is impractical to be tested by real testbeds as of now. The simulation results revealed that the MHN-E system is capable of providing a broadband mobile wireless backhaul with a peak data rate exceeding 5 Gb/s at a speed of 500 km/h.
Year
DOI
Venue
2019
10.1109/TVT.2018.2865700
IEEE Transactions on Vehicular Technology
Keywords
Field
DocType
5G mobile communication,Channel models,Broadband communication,Wireless communication,Rail transportation,3GPP,Frequency measurement
Single-frequency network,Wireless,Backhaul (telecommunications),Computer science,Communications system,Communication channel,Systems design,Electronic engineering,Real-time computing,Physical layer,Hotspot (Wi-Fi)
Journal
Volume
Issue
ISSN
68
3
0018-9545
Citations 
PageRank 
References 
2
0.36
0
Authors
7
Name
Order
Citations
PageRank
Junhyeong Kim17512.11
Mathis Schmieder220.36
Michael Peter312019.26
Hee-Sang Chung4196.38
Sungwoo Choi531.76
Ilgyu Kim6355.74
Youngnam Han779886.80