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Analysis of Pulse Modulation in LC Based Typical Indoor Environment

Jeong Gon Kim and Ho Kyung Yu
Dept. Electronic Engineering, Korea Polytechnic University, 237 Sangidaehak-ro, Siheung-si, 15073, Korea

Abstract—The 4th industrial revolution is affecting to medical and other industry. Recently, secure and reliable communication are required in medical or factory data transmission since ISM band is used and it occurs a lot of EMI Problems in existing RF communication. We use LC (Light Communication) to solve this problem in typical wireless environment. We use LED on the ceiling as the transmitter and PD in mobile device as the receiver for that. In this paper, we consider single carrier modulation for the connection between server and patients. We can also extend to Multi carrier Modulation such as DCO-OFDM for the high rate support. Based on the CIR model of the hospital or factory environment, the simulation is performed using OOK, 4-PAM, and 8-PAM to obtain link level performance. BER and the throughput are analyzed and compared in order to evaluate the potential use of VLC to the hospital ward or factory wirelss. It is shown that OOK can be applied to more secure cases and 8PAM can be better in considering the tradeoff between BER and throughput when the same transmitting power is used for that.

Index Terms—LC, single carrier, CIR, hospital ward, PAM, industry wireless

Cite: Jeong Gon Kim and Ho Kyung Yu, "Analysis of Pulse Modulation in LC Based Typical Indoor Environment," Journal of Communications vol. 15, no. 9, pp. 702-707, September 2020. Doi: 10.12720/jcm.15.9.702-707

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.