On the Feasibility of High Speed Railway mmWave Channels in Tunnel Scenario

Li, Guangkai; Ai, Bo; He, Danping; Zhang, Zhong; Hui, Bing; Kim, Junhyeong

doi:10.1155/2017/7135896

Cited by 12 publications

(3 citation statements)

References 33 publications

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“…RT simulations are used to estimate vehicle-to-vehicle (V2V) communications at 5 GHz for the LOS scenario between the transmitting and receiving antennas in different environments such as buildings, road traffic, etc., and it was proved that under obstructed vehicle environment, the higher antenna elements can achieve better coverage with lower path loss than the smaller antenna elements [95]. Recent research based on the ray-tracing approach is given in Table 3 [96][97][98][99][100][101][102][103][104][105][106].…”

Section: Ray-tracing Channel Modelingmentioning

confidence: 99%

A Critical Review on Channel Modeling: Implementations, Challenges and Applications

Saleem

Zhang

et al. 2023

Electronics

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In recent years, the use of massive multiple-input multiple-output (MIMO) systems and higher frequency bands for next-generation urban rail transportation systems has emerged as an intriguing research topic due to its potential to significantly increase network capacity by utilizing available narrowband and broadband spectrums. In metro and mining applications, the high-reliability wireless sensor network (WSN) plays a vital role in providing personal safety, channel optimization, and improving operational performance. Through the duration of 1921–2023, this paper provides the survey on the progress of fifth-generation (5G) and beyond-fifth-generation (B5G) wireless communication systems in underground environments such as tunnels and mines, the evolution of the earliest technologies, development in channel modeling for vehicle-to-vehicle (V2V) communications, and realization of different wireless propagation channels in high-speed train (HST) environments. In addition, the most recent advanced channel modeling methods are examined, including the development of new algorithms and their use in intelligent transportation systems (ITS); mathematical, analytical, and experimental techniques for propagation design; and the significance of the radiation characteristics, antenna placing, and physical environment effect on wireless communications. Leaky coaxial cable (LCX) and distributed antenna system (DAS) designs are introduced in the demonstrated systems for improving the channel capacity of narrowband and wideband channels as well as the spatial characteristics of various MIMO systems. The review article concludes by figuring out open research directions for future technologies.

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Section: Ray-tracing Channel Modelingmentioning

confidence: 99%

A Critical Review on Channel Modeling: Implementations, Challenges and Applications

Saleem

Zhang

et al. 2023

Electronics

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“…More recently, the research [56], [57] specifically investigated mmWave channel characteristics for HST in tunnel and intra wagon scenarios. The work [58] presented a design of the mmWave system dedicated to HST communications between train and trackside.…”

Section: High Speed Trainmentioning

confidence: 99%

Mobility Support for Millimeter Wave Communications: Opportunities and Challenges

Li¹,

Niu²,

Wu³

et al. 2022

Preprint

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Millimeter-wave (mmWave) communication technology offers a potential and promising solution to support 5G and B5G wireless networks in dynamic scenarios and applications. However, mobility introduces many challenges as well as opportunities to mmWave applications. To address these problems, we conduct a survey of the opportunities and technologies to support mmWave communications in mobile scenarios. Firstly, we summarize the mobile scenarios where mmWave communications are exploited, including indoor wireless local area network (WLAN) or wireless personal area network (WPAN), cellular access, vehicle-to-everything (V2X), high speed train (HST), unmanned aerial vehicle (UAV), and the new space-airground-sea communication scenarios. Then, to address users' mobility impact on the system performance in different application scenarios, we introduce several representative mobility models in mmWave systems, including human mobility, vehicular mobility, high speed train mobility and ship mobility. Next we survey the key challenges and existing solutions to mmWave applications, such as channel modeling, channel estimation, antiblockage, and capacity improvement. Lastly, we discuss the open issues concerning mobility-aware mmWave communications that deserve further investigation. In particular, we highlight future heterogeneous mobile networks, dynamic resource management, artificial intelligence (AI) for mobility and integration of geographical information, deployment of large intelligent surface and reconfigurable antenna technology, and finally, the evolution to Terahertz (THz) communications.

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“…The combination of the random position error and systematic distortion finally results in the randomness in element position. Finally, the electromagnetic performance of array antenna could be degraded, such as the gain loss, sidelobe level (SLL) rising, beam width broadening, and pointing error [5][6][7][8][9]. As a result, the communication distance will be shortened and the resistance to interference will be reduced, which seriously restricts the realization of high performance of array antenna.…”

Section: Introductionmentioning

confidence: 99%

Effect of Randomness in Element Position on Performance of Communication Array Antennas in Internet of Things

Wang

Yang

et al. 2018

Wireless Communications and Mobile Computing

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As a critical component for wireless communication, active phased array antennas face the restrictions of creating effective performance with the effect of randomness in the position of the array element, which are inevitably produced in the manufacturing and operating process of antenna. A new method for efficiently and effectively evaluating the statistic performance of antenna is presented, with consideration of randomness in element position. A coupled structural-electromagnetic statistic model for array antenna is proposed from the viewpoint of electromechanical coupling. Lastly, a 12×12 planar array is illustrated to evaluate the performance of antenna with the saddle-shaped distortion and random position error. The results show that the presented model can obtain the antenna performance quickly and effectively, providing an advantageous guidance for structural design and performance optimization for array antennas in wireless application.

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On the Feasibility of High Speed Railway mmWave Channels in Tunnel Scenario

Cited by 12 publications

References 33 publications

A Critical Review on Channel Modeling: Implementations, Challenges and Applications

A Critical Review on Channel Modeling: Implementations, Challenges and Applications

Mobility Support for Millimeter Wave Communications: Opportunities and Challenges

Effect of Randomness in Element Position on Performance of Communication Array Antennas in Internet of Things

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