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http://dx.doi.org/10.4218/etrij.2020-0448

Alignment of transmitters in indoor visible light communication for flat channel characteristics  

Curuk, Selva Muratoglu (Department of Electrical and Electronics Engineering, Iskenderun Technical University)
Publication Information
ETRI Journal / v.44, no.1, 2022 , pp. 125-134 More about this Journal
Abstract
Visible light communication (VLC) systems incorporate ambient lighting and wireless data transmission, and the experienced channel in indoor VLC is a major topic that should be examined for reliable communication. In this study, it is realized that multiple transmitters in classical alignment are the forceful factors for channel characteristics. In the frequency band, fluctuations with sudden drops are observed, where the fluctuation shape is related to the source layout and receiver location. These varying frequency-selective channels need solutions, especially for mobile users, because sustained channel estimation and equalization are necessary as the receiver changes its location. It is proven that using light-emitting diodes (LEDs) with highly directional beams as sources or using a detector with a narrow field of view (FOV) in the receiver may help partially alleviate the problem; the frequency selectivity of the channel reduces in some regions of the room. For flat fading channel characteristics all over the room, LEDs should be aligned in hexagonal cellular structure, and detector FOV should be arranged according to the cell dimension outcomes.
Keywords
alignment of transmitters; channel frequency response; channel impulse response; visible light communication (VLC);
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1 K. Lee, H. Park, and J. R. Barry, Indoor channel characteristics for visible light communications, IEEE Commun. Lett. 15 (2011), no. 2, 217-219.   DOI
2 M. I. S. Chowdhury, W. Zhang, and M. Kavehrad, Combined deterministic and modified Monte Carlo method for calculating impulse responses of indoor optical wireless channels, J. Light. Technol. 32 (2014), no. 18, 3132-3148.   DOI
3 J. R. Barry, J. M. Kahn, W. J. Krause, E. A. Lee, and D. G. Messerschmitt, Simulation of multipath impulse response for indoor wireless optical channels, IEEE J. Sel. Areas Commun. 11 (1993), no. 3, 367-379.   DOI
4 S. S. Muhammad, Delay profiles for indoor diffused visible light communication, in Proc. Int. Conf. Telecommun. (Graz, Austria), 2015, pp. 1-5.
5 J. J. Tana, C. Q. Zou, S. H. Du, and J. T. Tan, Simulation of MIMO channel characteristics for indoor visible light communication with LEDs, Optik 125 (2014), 44-49.   DOI
6 J. Ding, K. Wang, and Z. Xu, Impact of LED array simplification on indoor visible light communication channel modeling, in Proc. Int. Symp. Commun. Syst., Netw. Digit. Sign (Manchester, UK), 2014, pp. 1159-1164.
7 M. Kowalczyk and J. Siuzdak, Channel modeling and characterization for VLC indoor transmission systems based on MMC ray tracing method, in Proc. Photonics Appl. Astron., Commun., Ind., High-Energy Phys. Exp. (Wilga, Poland), 2018, pp. 1-9.
8 J. Perez, F. I. Chicharro, B. Ortega, and J. Mora, On the evaluation of an optical OFDM radio over FSO system with IM-DD for high-speed indoor communications, in Proc. IEEE Int. Conf. Transparent Opt. Netw. (Catalonia, Spain), 2017, pp. 1-4.
9 Y. Qiu, H. H. Chen, and W. X. Meng, Channel modeling for visible light communications-a survey, Wirel. Commun. Mob. Comput. 16 (2016), 2016-2034.   DOI
10 S. M. Curuk, and M. Kimyaci, The impact of configuration on channel characteristics in visible light communication, in Proc. IEEE Glob. Power, Energy Commun. Conf. (Nevsehir, Turkey), 2019, pp. 56-61.
11 S. Long, M. A. Khalighi, M. Wolf, S. Bourennane, and Z. Ghassemlooy, Investigating channel frequency selectivity in indoor visible-light communication systems, IET Optoelectron. 10 (2016), no. 3, 80-88.   DOI
12 A. M. Vegni and M. Biagi, Optimal LED placement in indoor VLC networks, Opt. Express 27 (2019), no. 6, 8504-8519.   DOI
13 B. R. Mendoza, S. Rodriguez, R. Perez-Jimenez, A. Ayala, and O. Gonzalez, Comparison of three non-imaging angle-diversity receivers as input sensors of nodes for indoor infrared wireless sensor networks: Theory and simulation, Sensors 16 (2016), no. 7, 1-18.   DOI
14 R. Mitran, and M. Stanic, Delay spread evaluation of HF channels based on ray tracing, in Proc. IEEE Int. Black Sea Conf. Commun. Netw. (Varna, Bulgaria), 2016, pp. 1-5.
15 A. Al-Kinani, C. X. Wang, H. Haas, and Y. Yang, Characterization and modeling of visible light communication channels, in Proc. IEEE Veh. Technol. Conf. (Nanjing, China), 2016, pp. 1-5.
16 D. Ding and X. Ke, A new indoor VLC channel model based on reflection, Opt. Lett. 6 (2010), no. 4, 295-298.   DOI
17 Y. Yang, Z. Zhu, C. Guo, and C. Feng, Power efficient LED placement algorithm for indoor visible light communication, Opt. Express 28 (2020), no. 24 36389-36402.   DOI
18 Z. Ghassemlooy, W. Popoola, and S. Rajbhandari, Optical Wireless Communications: System and Channel Modelling with MATLAB, CRC Press, Boca Raton, FL, USA, 2017.
19 J. Lian, Z. Vatansever, M. Noshad, and M. Brandt-Pearce, Indoor visible light communications, networking, and applications, J. Phys.: Photon. 1 (2019), no. 1, 1-28.   DOI
20 M. Z. Chowdhury, M. T. Hossan, A. Islam, and Y. M. Jang, A comparative survey of optical wireless technologies: Architectures and applications, IEEE Access 6 (2018), 9819-9840.   DOI
21 F. Miramirkhani and M. Uysal, Channel modeling and characterization for visible light communications, IEEE Photon. J. 7 (2015), no. 6, 7905616. https://doi.org/10.1109/JPHOT.2015.2504238   DOI
22 J. Ding and Z. Xu, Performance of indoor VLC and illumination under multiple reflections, in Proc. Int. Conf. Wirel. Commun. Signal Process. (WCSP), (Hefei, China), 2014, pp. 1-6.
23 F. J. Lopez-Hernandez, R. Perez-Jimenez, and A. Santamaria, Modified Monte Carlo scheme for high-efficiency simulation of the impulse response on diffuse IR wireless indoor channels, Electron. Lett. 34 (1998), no. 19, 1819-1820.   DOI
24 M. Kimyaci and S. M. Curuk, Channel in multiple transmitter visible light communication, Academic Platf. J. Eng. Sci. 9 (2021), no. 1, 10-18.
25 S. M. Nlom, A. R. Ndjiongue, and K. Ouahada, Cascaded PLC-VLC channel: an indoor measurements campaign, IEEE Access 6 (2018), 25230-25239.   DOI
26 R. C. Kizilirmak, Impact of repeaters on the performance of indoor visible light communications, Turkish J. Electr. Eng. Comput. Sci. 23 (2015), 1159-1172.   DOI
27 J. Grubor, S. Randel, K. D. Langer, and J. W. Walewski, Broadband information broadcasting using LED-based interior lighting, J. Light. Technol. 26 (2008), no. 24, 3883-3892.   DOI
28 X. Yang and A. Fapojuwo, Performance analysis of hexagonal cellular networks in fading channels, Wirel. Commun. Mob. Comput. 16 (2015), no. 7, 850-867.   DOI