Joint PAPR reduction with channel estimation for OFDM-based VLC systems
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Abstract
This paper presents a new combination of channel estimation (CE) methods and peak-to-average power ratio (PAPR) reduction techniques for orthogonal frequency division multiplexing (OFDM)-based visible light communication (VLC) systems. We first propose iterative clipping and filtering to minimize the PAPR of optical OFDM signals. Then, we introduce a computationally efficient, high-performance channel estimation approach using block-type pilots with modified clipped signals. The proposed method integrates clipping with three distinct CE techniques, resulting in both significant PAPR reduction and enhanced bit error rate (BER) performance. Among the CE methods evaluated, the expectation-maximization (EM) technique provides better BER results compared to other approaches. Simulation results confirm that the combined use of clipping and advanced CE methods leads to notable improvements in PAPR reduction and BER performance for OFDM-based VLC systems.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Author contributions: Both authors Mansour Eliwi Ali and Ayad A. Abdulkafi have equal contribution in developing the proposed system, executing simulations, and writing the manuscript. The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: The raw data can be obtained on request from the corresponding author.
References
1. Jiang, R, Wang, Q, Wang, F, Dai, L, Wang, Z. An optimal scaling scheme for DCO-OFDM based visible light communications. Opt Commun 2015;356:136–40. https://doi.org/10.1016/j.optcom.2015.07.053.Search in Google Scholar
2. Systems, SM, Wang, S, Member, S, Li, C, Mimo, AT. A low-complexity PAPR reduction scheme. Signal Process 2009;16:941–4.10.1109/LSP.2009.2027205Search in Google Scholar
3. Wulich, D, Goldfeld, L. Reduction of peak factor in orthogonal multicarrier modulation by amplitude limiting and coding. IEEE Trans Commun 1999;47:18–21. https://doi.org/10.1109/26.747808.Search in Google Scholar
4. Popoola, WO, Ghassemlooy, Z, Stewart, BG. Pilot-assisted PAPR reduction technique for optical OFDM communication systems. J Light Technol 2014;32:1374–82. https://doi.org/10.1109/JLT.2014.2304493.Search in Google Scholar
5. Han, SH, Lee, JH. An overview of peak-to-average power ratio reduction techniques for multicarrier transmission. IEEE Wirel Commun 2005;12:56–65. https://doi.org/10.1109/MWC.2005.1421929.Search in Google Scholar
6. Hou, J, Tellambura, C, Ge, J. Clipping noise-based tone injection for PAPR reduction in OFDM systems. IEEE Int Conf Commun 2013;5759–63. https://doi.org/10.1109/ICC.2013.6655514.Search in Google Scholar
7. AO Symbol, Luo, ZQ. Optimized iterative clipping and filtering for PAPR reduction of OFDM signals. Journal Magazine 2011;59:33–7, https://doi.org/10.1109/tcomm.2010.102910.090040, 2011.Search in Google Scholar
8. Lin, WF, Chow, CW, Yeh, CH. Using specific and adaptive arrangement of grid-type pilot in channel estimation for white-lightLED-based OFDM visible light communication system. Opt Commun 2015;338:7–10. https://doi.org/10.1016/j.optcom.2014.09.080.Search in Google Scholar
9. Hardan, SM, Bayat, O, Abdulkafi, AA. A new precoding scheme for spectral efficient optical OFDM systems. Opt Commun 2018;419:125–33. https://doi.org/10.1016/j.optcom.2018.03.030.Search in Google Scholar
10. Bektas, EB, Panayirci, E. Sparse channel estimation for DCO-OFDM VLC systems in the presence of clipping noise. Res Sq 2021;1–5. https://doi.org/10.21203/rs.3.rs-380210/v1.Search in Google Scholar
11. Őzmen, A, Şenol, H. Channel estimation for realistic indoor optical wireless communication in ACO-OFDM systems. Wirel Pers Commun 2018;102:247–59. https://doi.org/10.1007/s11277-018-5837-8.Search in Google Scholar
12. Niaz, MT, Imdad, F, Ejaz, W, Kim, HS. Compressed sensing-based channel estimation for ACO-OFDM visible light communications in 5G systems. EURASIP J Wirel Commun Netw 2016;2016:1–14. https://doi.org/10.1186/s13638-016-0774-2.Search in Google Scholar
13. Hussein, YS, Alias, MY, Abdulkafi, AA, Omar, N, Bin Salleh, M. Expectation maximization based channel estimation algorithm for OFDM visible light communications systems. Int J Eng Technol 2018;7:2638–45. https://doi.org/10.14419/ijet.v7i4.15994.Search in Google Scholar
14. Xu, W, Wu, M, Zhang, H, You, X, Zhao, C. ACO-OFDM-specified recoverable upper clipping with efficient detection for optical wireless communications. IEEE Photonics J 2014;6:1–17. https://doi.org/10.1109/JPHOT.2014.2352643.Search in Google Scholar
15. Elgala, H, Mesleh, R, Haas, H. Non-linearity effects and predistortion in optical OFDM wireless transmission using LEDs. Int J Ultra Wideband Commun Syst 2009;1:143–50. https://doi.org/10.1504/ijuwbcs.2009.029003.Search in Google Scholar
16. Chow, CW, Yeh, CH, Liu, YF, Huang, PY. Background optical noises circumvention in LED optical wireless systems using OFDM. IEEE Photonics J 2013;5:7900709. https://doi.org/10.1109/JPHOT.2013.2258663.Search in Google Scholar
17. Lee, HN, Pottie, GJ. Fast adaptive equalization/diversity combining for time-varying dispersive channels. IEEE Trans Commun 1998;46:1146–62. https://doi.org/10.1109/26.718557.Search in Google Scholar
18. Cho, YS, Kim, J, Yang, WY, Kang, CG. MIMO-OFDM wireless communications with MATLAB®. New York: Wiley; 2010. https://doi.org/10.1002/9780470825631.Search in Google Scholar
19. Ma, X, Kobayashi, H, Schwartz, SC. An EM-based estimation of OFDM signals. IEEE Wirel Commun Netw Conf WCNC 2002;1:228–32. https://doi.org/10.1109/WCNC.2002.993496.Search in Google Scholar
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Articles in the same Issue
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Articles in the same Issue
- Frontmatter
- Detectors
- Integrating optical communication in MIMO-OTFS using hybrid signal detection methods: analyzing the throughput and spectrum
- Multi-surveillance detection for night surveillance using modified yolo v5 algorithm based optical communication
- Fibers
- Splice loss in dual mode triangular index fibers: an analytic approach in the presence of nonlinearity for various V numbers
- Performance signature for angular misalignment measurement of fiber to fiber connectors with minimum insertion loss and low distortion in optical fiber transceiver systems
- Networks
- Historical development of passive optical network (PON): a review
- Long wavelength fluoride optical glass fibers performance signature in high speed local area data networks
- Fairness optimized based DBA for long reach XGPON networks
- Systems
- Visible light communication optical FBMC-OQAM PAPR reduction using FHT-PTR algorithm for beyond 5G system
- Nonlinearity-tolerant transmission using modified phase-conjugate twin wave for M-PSK signals
- An efficient hybrid spectrum sensing algorithm to enhance the performance of optical NOMA waveforms using 256-QAM
- Coherent optical-OFDM system’s contribution to the management of chromatic and polarization mode dispersion using DSP
- Enhancing the signal efficiency and PAPR performance of FBMC waveform in optical communication
- Supplantation and utility of aquatic bio-optical communication system at Gulf of Mannar Marine National Park, India
- Distortion-tolerant on–off keying preemphasis signal transmission for a 10 Gbps indoor visible light communications
- Unidirectional transmission of optical waveguides in optical communication bands based on the valley Hall effect
- Evaluation of underwater laser communication performance across different water types
- A review on free space optical communication links: 5G applications
- Spectrally efficient DWDM system using DQPSK modulation
- Investigating performance of optical communication system with FSO/OWC channel
- Atmosphere turbulence effects on a multiple apertures free space optical communication systems
- A closed-form solution of BER for a convolutional coded non-Hermitian OFDM FSO system with polarization diversity
- Theory
- Performance analysis of MDM-OCDMA free space optical system using shift ZCC codes
- Solutions to the Schrödinger equation using deep neural networks for integrated photonics
- Secrecy and performance analysis of dual hop FSO-RF system using differential chaos shift keying
- Joint PAPR reduction with channel estimation for OFDM-based VLC systems
