Comparative Characterization of Indoor VLC and MMW Communications via Ray Tracing Simulations

被引:14
作者
Aghaei, Fahimeh [1 ]
Eldeeb, Hossien B. [2 ]
Bariah, Lina [2 ,3 ]
Muhaidat, Sami [2 ]
Uysal, Murat [1 ,4 ]
机构
[1] Ozyegin Univ, Dept Elect & Elect Engn, TR-34794 Istanbul, Turkiye
[2] Khalifa Univ, Ctr Cyber Phys Syst, Dept Elect Engn & Comp Sci, Abu Dhabi, U Arab Emirates
[3] Technol Innovat Inst, Abu Dhabi, U Arab Emirates
[4] NYU Abu Dhabi NYUAD, Engn Div, Abu Dhabi, U Arab Emirates
来源
IEEE ACCESS | 2023年 / 11卷
关键词
Optical reflection; Wireless communication; Solid modeling; Ray tracing; Optical transmitters; Optical receivers; Visible light communication; Radio frequency; Wireless fidelity; Hybrid power systems; Radio frequency (RF); visible light communication (VLC); hybrid RF/VLC; wireless fidelity (Wi-Fi); hybrid networks; hybrid RF/VLC environments; MILLIMETER-WAVE; CHANNEL MODELS;
D O I
10.1109/ACCESS.2023.3307186
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The demand for ultra-high-speed indoor wireless connectivity is ever-increasing, which poses unique challenges for the next generation wireless communication system design. This has prompted the exploration of higher frequency bands including millimeter wave (MMW) and visible light bands in addition to the conventional sub-6 GHz band. This paper provides a comprehensive comparison of the propagation channels of these frequency bands under the same indoor environment and scenarios. We adopt ray tracing techniques for site-specific channel modeling, which enables the consideration of the three-dimensional models of the indoor environment and objects inside. It allows us to take into account different frequencies, i.e., 2.4 GHz, 6 GHz, 28 GHz, 60 GHz, 100 GHz, and visible light band as well as different transmitter types, i.e., omnidirectional/directional antennas for radio frequency systems and indoor luminaries for visible light communications (VLC). For different frequencies under consideration, we obtain channel impulse responses (CIRs) and present the channel path losses for various user trajectories in indoor environments. Furthermore, we propose closed-form expressions for the cumulative distribution functions (CDFs) of received power levels for all frequency bands under consideration. Our results demonstrate that VLC channels exhibit lower path loss than that in MMW bands but higher than that of 2.4 GHz band. In addition, it is observed that VLC systems exhibit more sensitivity to shadowing and blockage effects. Our findings further indicate that the characteristics of the propagation channel are greatly influenced by the antenna type. For instance, using omnidirectional and rectangular patch antennas results in lower path loss compared to horn antennas, and this difference becomes more significant as the transmission distance decreases.
引用
收藏
页码:90345 / 90357
页数:13
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